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-rw-r--r--media/ffvpx/libavcodec/utils.c2253
1 files changed, 2253 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/utils.c b/media/ffvpx/libavcodec/utils.c
new file mode 100644
index 0000000000..75e7035b8a
--- /dev/null
+++ b/media/ffvpx/libavcodec/utils.c
@@ -0,0 +1,2253 @@
+/*
+ * utils for libavcodec
+ * Copyright (c) 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * utils.
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
+#include "libavutil/bprint.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/crc.h"
+#include "libavutil/frame.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/internal.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem_internal.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/dict.h"
+#include "libavutil/thread.h"
+#include "avcodec.h"
+#include "decode.h"
+#include "hwaccel.h"
+#include "libavutil/opt.h"
+#include "mpegvideo.h"
+#include "thread.h"
+#include "frame_thread_encoder.h"
+#include "internal.h"
+#include "raw.h"
+#include "bytestream.h"
+#include "version.h"
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdatomic.h>
+#include <limits.h>
+#include <float.h>
+#if CONFIG_ICONV
+# include <iconv.h>
+#endif
+
+#include "libavutil/ffversion.h"
+const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
+static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
+
+void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
+{
+ uint8_t **p = ptr;
+ if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+ av_freep(p);
+ *size = 0;
+ return;
+ }
+ if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
+ memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+}
+
+void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
+{
+ uint8_t **p = ptr;
+ if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+ av_freep(p);
+ *size = 0;
+ return;
+ }
+ if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
+ memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
+}
+
+int av_codec_is_encoder(const AVCodec *codec)
+{
+ return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
+}
+
+int av_codec_is_decoder(const AVCodec *codec)
+{
+ return codec && (codec->decode || codec->receive_frame);
+}
+
+int ff_set_dimensions(AVCodecContext *s, int width, int height)
+{
+ int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
+
+ if (ret < 0)
+ width = height = 0;
+
+ s->coded_width = width;
+ s->coded_height = height;
+ s->width = AV_CEIL_RSHIFT(width, s->lowres);
+ s->height = AV_CEIL_RSHIFT(height, s->lowres);
+
+ return ret;
+}
+
+int ff_set_sar(AVCodecContext *avctx, AVRational sar)
+{
+ int ret = av_image_check_sar(avctx->width, avctx->height, sar);
+
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
+ sar.num, sar.den);
+ avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
+ return ret;
+ } else {
+ avctx->sample_aspect_ratio = sar;
+ }
+ return 0;
+}
+
+int ff_side_data_update_matrix_encoding(AVFrame *frame,
+ enum AVMatrixEncoding matrix_encoding)
+{
+ AVFrameSideData *side_data;
+ enum AVMatrixEncoding *data;
+
+ side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
+ if (!side_data)
+ side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
+ sizeof(enum AVMatrixEncoding));
+
+ if (!side_data)
+ return AVERROR(ENOMEM);
+
+ data = (enum AVMatrixEncoding*)side_data->data;
+ *data = matrix_encoding;
+
+ return 0;
+}
+
+void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
+ int linesize_align[AV_NUM_DATA_POINTERS])
+{
+ int i;
+ int w_align = 1;
+ int h_align = 1;
+ AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
+
+ if (desc) {
+ w_align = 1 << desc->log2_chroma_w;
+ h_align = 1 << desc->log2_chroma_h;
+ }
+
+ switch (s->pix_fmt) {
+ case AV_PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUYV422:
+ case AV_PIX_FMT_YVYU422:
+ case AV_PIX_FMT_UYVY422:
+ case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV440P:
+ case AV_PIX_FMT_YUV444P:
+ case AV_PIX_FMT_GBRP:
+ case AV_PIX_FMT_GBRAP:
+ case AV_PIX_FMT_GRAY8:
+ case AV_PIX_FMT_GRAY16BE:
+ case AV_PIX_FMT_GRAY16LE:
+ case AV_PIX_FMT_YUVJ420P:
+ case AV_PIX_FMT_YUVJ422P:
+ case AV_PIX_FMT_YUVJ440P:
+ case AV_PIX_FMT_YUVJ444P:
+ case AV_PIX_FMT_YUVA420P:
+ case AV_PIX_FMT_YUVA422P:
+ case AV_PIX_FMT_YUVA444P:
+ case AV_PIX_FMT_YUV420P9LE:
+ case AV_PIX_FMT_YUV420P9BE:
+ case AV_PIX_FMT_YUV420P10LE:
+ case AV_PIX_FMT_YUV420P10BE:
+ case AV_PIX_FMT_YUV420P12LE:
+ case AV_PIX_FMT_YUV420P12BE:
+ case AV_PIX_FMT_YUV420P14LE:
+ case AV_PIX_FMT_YUV420P14BE:
+ case AV_PIX_FMT_YUV420P16LE:
+ case AV_PIX_FMT_YUV420P16BE:
+ case AV_PIX_FMT_YUVA420P9LE:
+ case AV_PIX_FMT_YUVA420P9BE:
+ case AV_PIX_FMT_YUVA420P10LE:
+ case AV_PIX_FMT_YUVA420P10BE:
+ case AV_PIX_FMT_YUVA420P16LE:
+ case AV_PIX_FMT_YUVA420P16BE:
+ case AV_PIX_FMT_YUV422P9LE:
+ case AV_PIX_FMT_YUV422P9BE:
+ case AV_PIX_FMT_YUV422P10LE:
+ case AV_PIX_FMT_YUV422P10BE:
+ case AV_PIX_FMT_YUV422P12LE:
+ case AV_PIX_FMT_YUV422P12BE:
+ case AV_PIX_FMT_YUV422P14LE:
+ case AV_PIX_FMT_YUV422P14BE:
+ case AV_PIX_FMT_YUV422P16LE:
+ case AV_PIX_FMT_YUV422P16BE:
+ case AV_PIX_FMT_YUVA422P9LE:
+ case AV_PIX_FMT_YUVA422P9BE:
+ case AV_PIX_FMT_YUVA422P10LE:
+ case AV_PIX_FMT_YUVA422P10BE:
+ case AV_PIX_FMT_YUVA422P12LE:
+ case AV_PIX_FMT_YUVA422P12BE:
+ case AV_PIX_FMT_YUVA422P16LE:
+ case AV_PIX_FMT_YUVA422P16BE:
+ case AV_PIX_FMT_YUV440P10LE:
+ case AV_PIX_FMT_YUV440P10BE:
+ case AV_PIX_FMT_YUV440P12LE:
+ case AV_PIX_FMT_YUV440P12BE:
+ case AV_PIX_FMT_YUV444P9LE:
+ case AV_PIX_FMT_YUV444P9BE:
+ case AV_PIX_FMT_YUV444P10LE:
+ case AV_PIX_FMT_YUV444P10BE:
+ case AV_PIX_FMT_YUV444P12LE:
+ case AV_PIX_FMT_YUV444P12BE:
+ case AV_PIX_FMT_YUV444P14LE:
+ case AV_PIX_FMT_YUV444P14BE:
+ case AV_PIX_FMT_YUV444P16LE:
+ case AV_PIX_FMT_YUV444P16BE:
+ case AV_PIX_FMT_YUVA444P9LE:
+ case AV_PIX_FMT_YUVA444P9BE:
+ case AV_PIX_FMT_YUVA444P10LE:
+ case AV_PIX_FMT_YUVA444P10BE:
+ case AV_PIX_FMT_YUVA444P12LE:
+ case AV_PIX_FMT_YUVA444P12BE:
+ case AV_PIX_FMT_YUVA444P16LE:
+ case AV_PIX_FMT_YUVA444P16BE:
+ case AV_PIX_FMT_GBRP9LE:
+ case AV_PIX_FMT_GBRP9BE:
+ case AV_PIX_FMT_GBRP10LE:
+ case AV_PIX_FMT_GBRP10BE:
+ case AV_PIX_FMT_GBRP12LE:
+ case AV_PIX_FMT_GBRP12BE:
+ case AV_PIX_FMT_GBRP14LE:
+ case AV_PIX_FMT_GBRP14BE:
+ case AV_PIX_FMT_GBRP16LE:
+ case AV_PIX_FMT_GBRP16BE:
+ case AV_PIX_FMT_GBRAP12LE:
+ case AV_PIX_FMT_GBRAP12BE:
+ case AV_PIX_FMT_GBRAP16LE:
+ case AV_PIX_FMT_GBRAP16BE:
+ w_align = 16; //FIXME assume 16 pixel per macroblock
+ h_align = 16 * 2; // interlaced needs 2 macroblocks height
+ break;
+ case AV_PIX_FMT_YUV411P:
+ case AV_PIX_FMT_YUVJ411P:
+ case AV_PIX_FMT_UYYVYY411:
+ w_align = 32;
+ h_align = 16 * 2;
+ break;
+ case AV_PIX_FMT_YUV410P:
+ if (s->codec_id == AV_CODEC_ID_SVQ1) {
+ w_align = 64;
+ h_align = 64;
+ }
+ break;
+ case AV_PIX_FMT_RGB555:
+ if (s->codec_id == AV_CODEC_ID_RPZA) {
+ w_align = 4;
+ h_align = 4;
+ }
+ if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
+ w_align = 8;
+ h_align = 8;
+ }
+ break;
+ case AV_PIX_FMT_PAL8:
+ case AV_PIX_FMT_BGR8:
+ case AV_PIX_FMT_RGB8:
+ if (s->codec_id == AV_CODEC_ID_SMC ||
+ s->codec_id == AV_CODEC_ID_CINEPAK) {
+ w_align = 4;
+ h_align = 4;
+ }
+ if (s->codec_id == AV_CODEC_ID_JV ||
+ s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
+ w_align = 8;
+ h_align = 8;
+ }
+ break;
+ case AV_PIX_FMT_BGR24:
+ if ((s->codec_id == AV_CODEC_ID_MSZH) ||
+ (s->codec_id == AV_CODEC_ID_ZLIB)) {
+ w_align = 4;
+ h_align = 4;
+ }
+ break;
+ case AV_PIX_FMT_RGB24:
+ if (s->codec_id == AV_CODEC_ID_CINEPAK) {
+ w_align = 4;
+ h_align = 4;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
+ w_align = FFMAX(w_align, 8);
+ }
+
+ *width = FFALIGN(*width, w_align);
+ *height = FFALIGN(*height, h_align);
+ if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
+ s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
+ s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
+ ) {
+ // some of the optimized chroma MC reads one line too much
+ // which is also done in mpeg decoders with lowres > 0
+ *height += 2;
+
+ // H.264 uses edge emulation for out of frame motion vectors, for this
+ // it requires a temporary area large enough to hold a 21x21 block,
+ // increasing witdth ensure that the temporary area is large enough,
+ // the next rounded up width is 32
+ *width = FFMAX(*width, 32);
+ }
+
+ for (i = 0; i < 4; i++)
+ linesize_align[i] = STRIDE_ALIGN;
+}
+
+void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
+ int chroma_shift = desc->log2_chroma_w;
+ int linesize_align[AV_NUM_DATA_POINTERS];
+ int align;
+
+ avcodec_align_dimensions2(s, width, height, linesize_align);
+ align = FFMAX(linesize_align[0], linesize_align[3]);
+ linesize_align[1] <<= chroma_shift;
+ linesize_align[2] <<= chroma_shift;
+ align = FFMAX3(align, linesize_align[1], linesize_align[2]);
+ *width = FFALIGN(*width, align);
+}
+
+int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
+{
+ if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
+ return AVERROR(EINVAL);
+ pos--;
+
+ *xpos = (pos&1) * 128;
+ *ypos = ((pos>>1)^(pos<4)) * 128;
+
+ return 0;
+}
+
+enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
+{
+ int pos, xout, yout;
+
+ for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
+ if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
+ return pos;
+ }
+ return AVCHROMA_LOC_UNSPECIFIED;
+}
+
+int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
+ enum AVSampleFormat sample_fmt, const uint8_t *buf,
+ int buf_size, int align)
+{
+ int ch, planar, needed_size, ret = 0;
+
+ needed_size = av_samples_get_buffer_size(NULL, nb_channels,
+ frame->nb_samples, sample_fmt,
+ align);
+ if (buf_size < needed_size)
+ return AVERROR(EINVAL);
+
+ planar = av_sample_fmt_is_planar(sample_fmt);
+ if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
+ if (!(frame->extended_data = av_mallocz_array(nb_channels,
+ sizeof(*frame->extended_data))))
+ return AVERROR(ENOMEM);
+ } else {
+ frame->extended_data = frame->data;
+ }
+
+ if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
+ (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
+ sample_fmt, align)) < 0) {
+ if (frame->extended_data != frame->data)
+ av_freep(&frame->extended_data);
+ return ret;
+ }
+ if (frame->extended_data != frame->data) {
+ for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
+ frame->data[ch] = frame->extended_data[ch];
+ }
+
+ return ret;
+}
+
+void ff_color_frame(AVFrame *frame, const int c[4])
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+ int p, y;
+
+ av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
+
+ for (p = 0; p<desc->nb_components; p++) {
+ uint8_t *dst = frame->data[p];
+ int is_chroma = p == 1 || p == 2;
+ int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
+ int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
+ if (desc->comp[0].depth >= 9) {
+ ((uint16_t*)dst)[0] = c[p];
+ av_memcpy_backptr(dst + 2, 2, bytes - 2);
+ dst += frame->linesize[p];
+ for (y = 1; y < height; y++) {
+ memcpy(dst, frame->data[p], 2*bytes);
+ dst += frame->linesize[p];
+ }
+ } else {
+ for (y = 0; y < height; y++) {
+ memset(dst, c[p], bytes);
+ dst += frame->linesize[p];
+ }
+ }
+ }
+}
+
+int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ int r = func(c, (char *)arg + i * size);
+ if (ret)
+ ret[i] = r;
+ }
+ emms_c();
+ return 0;
+}
+
+int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ int r = func(c, arg, i, 0);
+ if (ret)
+ ret[i] = r;
+ }
+ emms_c();
+ return 0;
+}
+
+enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
+ unsigned int fourcc)
+{
+ while (tags->pix_fmt >= 0) {
+ if (tags->fourcc == fourcc)
+ return tags->pix_fmt;
+ tags++;
+ }
+ return AV_PIX_FMT_NONE;
+}
+
+#if FF_API_CODEC_GET_SET
+MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
+MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
+MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
+MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
+MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
+
+unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
+{
+ return codec->properties;
+}
+
+int av_codec_get_max_lowres(const AVCodec *codec)
+{
+ return codec->max_lowres;
+}
+#endif
+
+int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
+ return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
+}
+
+static int64_t get_bit_rate(AVCodecContext *ctx)
+{
+ int64_t bit_rate;
+ int bits_per_sample;
+
+ switch (ctx->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ case AVMEDIA_TYPE_DATA:
+ case AVMEDIA_TYPE_SUBTITLE:
+ case AVMEDIA_TYPE_ATTACHMENT:
+ bit_rate = ctx->bit_rate;
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
+ bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
+ break;
+ default:
+ bit_rate = 0;
+ break;
+ }
+ return bit_rate;
+}
+
+
+static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
+{
+ if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
+ ff_mutex_lock(&codec_mutex);
+}
+
+static void ff_unlock_avcodec(const AVCodec *codec)
+{
+ if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
+ ff_mutex_unlock(&codec_mutex);
+}
+
+int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
+{
+ int ret = 0;
+
+ ff_unlock_avcodec(codec);
+
+ ret = avcodec_open2(avctx, codec, options);
+
+ ff_lock_avcodec(avctx, codec);
+ return ret;
+}
+
+int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
+{
+ int ret = 0;
+ int codec_init_ok = 0;
+ AVDictionary *tmp = NULL;
+ const AVPixFmtDescriptor *pixdesc;
+
+ if (avcodec_is_open(avctx))
+ return 0;
+
+ if ((!codec && !avctx->codec)) {
+ av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
+ return AVERROR(EINVAL);
+ }
+ if ((codec && avctx->codec && codec != avctx->codec)) {
+ av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
+ "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
+ return AVERROR(EINVAL);
+ }
+ if (!codec)
+ codec = avctx->codec;
+
+ if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
+ return AVERROR(EINVAL);
+
+ if (options)
+ av_dict_copy(&tmp, *options, 0);
+
+ ff_lock_avcodec(avctx, codec);
+
+ avctx->internal = av_mallocz(sizeof(*avctx->internal));
+ if (!avctx->internal) {
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+
+ avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
+ if (!avctx->internal->pool) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->to_free = av_frame_alloc();
+ if (!avctx->internal->to_free) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->compat_decode_frame = av_frame_alloc();
+ if (!avctx->internal->compat_decode_frame) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->buffer_frame = av_frame_alloc();
+ if (!avctx->internal->buffer_frame) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->buffer_pkt = av_packet_alloc();
+ if (!avctx->internal->buffer_pkt) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->ds.in_pkt = av_packet_alloc();
+ if (!avctx->internal->ds.in_pkt) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->last_pkt_props = av_packet_alloc();
+ if (!avctx->internal->last_pkt_props) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->skip_samples_multiplier = 1;
+
+ if (codec->priv_data_size > 0) {
+ if (!avctx->priv_data) {
+ avctx->priv_data = av_mallocz(codec->priv_data_size);
+ if (!avctx->priv_data) {
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+ if (codec->priv_class) {
+ *(const AVClass **)avctx->priv_data = codec->priv_class;
+ av_opt_set_defaults(avctx->priv_data);
+ }
+ }
+ if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
+ goto free_and_end;
+ } else {
+ avctx->priv_data = NULL;
+ }
+ if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
+ goto free_and_end;
+
+ if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+
+ // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
+ if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
+ (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
+ if (avctx->coded_width && avctx->coded_height)
+ ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
+ else if (avctx->width && avctx->height)
+ ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
+ if (ret < 0)
+ goto free_and_end;
+ }
+
+ if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
+ && ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
+ || av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
+ av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
+ ff_set_dimensions(avctx, 0, 0);
+ }
+
+ if (avctx->width > 0 && avctx->height > 0) {
+ if (av_image_check_sar(avctx->width, avctx->height,
+ avctx->sample_aspect_ratio) < 0) {
+ av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
+ avctx->sample_aspect_ratio.num,
+ avctx->sample_aspect_ratio.den);
+ avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
+ }
+ }
+
+ /* if the decoder init function was already called previously,
+ * free the already allocated subtitle_header before overwriting it */
+ if (av_codec_is_decoder(codec))
+ av_freep(&avctx->subtitle_header);
+
+ if (avctx->channels > FF_SANE_NB_CHANNELS || avctx->channels < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Too many or invalid channels: %d\n", avctx->channels);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->sample_rate < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->block_align < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+
+ avctx->codec = codec;
+ if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
+ avctx->codec_id == AV_CODEC_ID_NONE) {
+ avctx->codec_type = codec->type;
+ avctx->codec_id = codec->id;
+ }
+ if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
+ && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
+ av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ avctx->frame_number = 0;
+ avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
+
+ if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
+ avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
+ const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
+ AVCodec *codec2;
+ av_log(avctx, AV_LOG_ERROR,
+ "The %s '%s' is experimental but experimental codecs are not enabled, "
+ "add '-strict %d' if you want to use it.\n",
+ codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
+ codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
+ if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
+ av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
+ codec_string, codec2->name);
+ ret = AVERROR_EXPERIMENTAL;
+ goto free_and_end;
+ }
+
+ if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
+ (!avctx->time_base.num || !avctx->time_base.den)) {
+ avctx->time_base.num = 1;
+ avctx->time_base.den = avctx->sample_rate;
+ }
+
+ if (!HAVE_THREADS)
+ av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
+
+ if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
+ ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
+ ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
+ ff_lock_avcodec(avctx, codec);
+ if (ret < 0)
+ goto free_and_end;
+ }
+
+ if (av_codec_is_decoder(avctx->codec)) {
+ ret = ff_decode_bsfs_init(avctx);
+ if (ret < 0)
+ goto free_and_end;
+ }
+
+ if (HAVE_THREADS
+ && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
+ ret = ff_thread_init(avctx);
+ if (ret < 0) {
+ goto free_and_end;
+ }
+ }
+ if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
+ avctx->thread_count = 1;
+
+ if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
+ av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
+ avctx->codec->max_lowres);
+ avctx->lowres = avctx->codec->max_lowres;
+ }
+
+ if (av_codec_is_encoder(avctx->codec)) {
+ int i;
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+ avctx->coded_frame = av_frame_alloc();
+ if (!avctx->coded_frame) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+
+ if (avctx->codec->sample_fmts) {
+ for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
+ if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
+ break;
+ if (avctx->channels == 1 &&
+ av_get_planar_sample_fmt(avctx->sample_fmt) ==
+ av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
+ avctx->sample_fmt = avctx->codec->sample_fmts[i];
+ break;
+ }
+ }
+ if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
+ char buf[128];
+ snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
+ av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
+ (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ if (avctx->codec->pix_fmts) {
+ for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
+ if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
+ break;
+ if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
+ && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
+ && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
+ char buf[128];
+ snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
+ av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
+ (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
+ avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
+ avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
+ avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
+ avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
+ avctx->color_range = AVCOL_RANGE_JPEG;
+ }
+ if (avctx->codec->supported_samplerates) {
+ for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
+ if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
+ break;
+ if (avctx->codec->supported_samplerates[i] == 0) {
+ av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
+ avctx->sample_rate);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ if (avctx->sample_rate < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
+ avctx->sample_rate);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->codec->channel_layouts) {
+ if (!avctx->channel_layout) {
+ av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
+ } else {
+ for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
+ if (avctx->channel_layout == avctx->codec->channel_layouts[i])
+ break;
+ if (avctx->codec->channel_layouts[i] == 0) {
+ char buf[512];
+ av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+ av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ }
+ if (avctx->channel_layout && avctx->channels) {
+ int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+ if (channels != avctx->channels) {
+ char buf[512];
+ av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+ av_log(avctx, AV_LOG_ERROR,
+ "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
+ buf, channels, avctx->channels);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ } else if (avctx->channel_layout) {
+ avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+ }
+ if (avctx->channels < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
+ avctx->channels);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+ pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
+ if ( avctx->bits_per_raw_sample < 0
+ || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
+ av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
+ avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
+ avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
+ }
+ if (avctx->width <= 0 || avctx->height <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
+ && avctx->bit_rate>0 && avctx->bit_rate<1000) {
+ av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
+ }
+
+ if (!avctx->rc_initial_buffer_occupancy)
+ avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
+
+ if (avctx->ticks_per_frame && avctx->time_base.num &&
+ avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
+ av_log(avctx, AV_LOG_ERROR,
+ "ticks_per_frame %d too large for the timebase %d/%d.",
+ avctx->ticks_per_frame,
+ avctx->time_base.num,
+ avctx->time_base.den);
+ goto free_and_end;
+ }
+
+ if (avctx->hw_frames_ctx) {
+ AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
+ if (frames_ctx->format != avctx->pix_fmt) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
+ avctx->sw_pix_fmt != frames_ctx->sw_format) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Mismatching AVCodecContext.sw_pix_fmt (%s) "
+ "and AVHWFramesContext.sw_format (%s)\n",
+ av_get_pix_fmt_name(avctx->sw_pix_fmt),
+ av_get_pix_fmt_name(frames_ctx->sw_format));
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ avctx->sw_pix_fmt = frames_ctx->sw_format;
+ }
+ }
+
+ avctx->pts_correction_num_faulty_pts =
+ avctx->pts_correction_num_faulty_dts = 0;
+ avctx->pts_correction_last_pts =
+ avctx->pts_correction_last_dts = INT64_MIN;
+
+ if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
+ && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
+ av_log(avctx, AV_LOG_WARNING,
+ "gray decoding requested but not enabled at configuration time\n");
+
+ if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
+ || avctx->internal->frame_thread_encoder)) {
+ ret = avctx->codec->init(avctx);
+ if (ret < 0) {
+ goto free_and_end;
+ }
+ codec_init_ok = 1;
+ }
+
+ ret=0;
+
+ if (av_codec_is_decoder(avctx->codec)) {
+ if (!avctx->bit_rate)
+ avctx->bit_rate = get_bit_rate(avctx);
+ /* validate channel layout from the decoder */
+ if (avctx->channel_layout) {
+ int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+ if (!avctx->channels)
+ avctx->channels = channels;
+ else if (channels != avctx->channels) {
+ char buf[512];
+ av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+ av_log(avctx, AV_LOG_WARNING,
+ "Channel layout '%s' with %d channels does not match specified number of channels %d: "
+ "ignoring specified channel layout\n",
+ buf, channels, avctx->channels);
+ avctx->channel_layout = 0;
+ }
+ }
+ if (avctx->channels && avctx->channels < 0 ||
+ avctx->channels > FF_SANE_NB_CHANNELS) {
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->bits_per_coded_sample < 0) {
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->sub_charenc) {
+ if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
+ av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
+ "supported with subtitles codecs\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
+ av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
+ "subtitles character encoding will be ignored\n",
+ avctx->codec_descriptor->name);
+ avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
+ } else {
+ /* input character encoding is set for a text based subtitle
+ * codec at this point */
+ if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
+ avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
+
+ if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
+#if CONFIG_ICONV
+ iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
+ if (cd == (iconv_t)-1) {
+ ret = AVERROR(errno);
+ av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
+ "with input character encoding \"%s\"\n", avctx->sub_charenc);
+ goto free_and_end;
+ }
+ iconv_close(cd);
+#else
+ av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
+ "conversion needs a libavcodec built with iconv support "
+ "for this codec\n");
+ ret = AVERROR(ENOSYS);
+ goto free_and_end;
+#endif
+ }
+ }
+ }
+
+#if FF_API_AVCTX_TIMEBASE
+ if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
+ avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
+#endif
+ }
+ if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
+ av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
+ }
+
+end:
+ ff_unlock_avcodec(codec);
+ if (options) {
+ av_dict_free(options);
+ *options = tmp;
+ }
+
+ return ret;
+free_and_end:
+ if (avctx->codec && avctx->codec->close &&
+ (codec_init_ok ||
+ (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
+ avctx->codec->close(avctx);
+
+ if (HAVE_THREADS && avctx->internal->thread_ctx)
+ ff_thread_free(avctx);
+
+ if (codec->priv_class && codec->priv_data_size)
+ av_opt_free(avctx->priv_data);
+ av_opt_free(avctx);
+
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+ av_frame_free(&avctx->coded_frame);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ av_dict_free(&tmp);
+ av_freep(&avctx->priv_data);
+ av_freep(&avctx->subtitle_header);
+ if (avctx->internal) {
+ av_frame_free(&avctx->internal->to_free);
+ av_frame_free(&avctx->internal->compat_decode_frame);
+ av_frame_free(&avctx->internal->buffer_frame);
+ av_packet_free(&avctx->internal->buffer_pkt);
+ av_packet_free(&avctx->internal->last_pkt_props);
+
+ av_packet_free(&avctx->internal->ds.in_pkt);
+ ff_decode_bsfs_uninit(avctx);
+
+ av_freep(&avctx->internal->pool);
+ }
+ av_freep(&avctx->internal);
+ avctx->codec = NULL;
+ goto end;
+}
+
+void avsubtitle_free(AVSubtitle *sub)
+{
+ int i;
+
+ for (i = 0; i < sub->num_rects; i++) {
+ av_freep(&sub->rects[i]->data[0]);
+ av_freep(&sub->rects[i]->data[1]);
+ av_freep(&sub->rects[i]->data[2]);
+ av_freep(&sub->rects[i]->data[3]);
+ av_freep(&sub->rects[i]->text);
+ av_freep(&sub->rects[i]->ass);
+ av_freep(&sub->rects[i]);
+ }
+
+ av_freep(&sub->rects);
+
+ memset(sub, 0, sizeof(*sub));
+}
+
+av_cold int avcodec_close(AVCodecContext *avctx)
+{
+ int i;
+
+ if (!avctx)
+ return 0;
+
+ if (avcodec_is_open(avctx)) {
+ FramePool *pool = avctx->internal->pool;
+ if (CONFIG_FRAME_THREAD_ENCODER &&
+ avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
+ ff_frame_thread_encoder_free(avctx);
+ }
+ if (HAVE_THREADS && avctx->internal->thread_ctx)
+ ff_thread_free(avctx);
+ if (avctx->codec && avctx->codec->close)
+ avctx->codec->close(avctx);
+ avctx->internal->byte_buffer_size = 0;
+ av_freep(&avctx->internal->byte_buffer);
+ av_frame_free(&avctx->internal->to_free);
+ av_frame_free(&avctx->internal->compat_decode_frame);
+ av_frame_free(&avctx->internal->buffer_frame);
+ av_packet_free(&avctx->internal->buffer_pkt);
+ av_packet_free(&avctx->internal->last_pkt_props);
+
+ av_packet_free(&avctx->internal->ds.in_pkt);
+
+ for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
+ av_buffer_pool_uninit(&pool->pools[i]);
+ av_freep(&avctx->internal->pool);
+
+ if (avctx->hwaccel && avctx->hwaccel->uninit)
+ avctx->hwaccel->uninit(avctx);
+ av_freep(&avctx->internal->hwaccel_priv_data);
+
+ ff_decode_bsfs_uninit(avctx);
+
+ av_freep(&avctx->internal);
+ }
+
+ for (i = 0; i < avctx->nb_coded_side_data; i++)
+ av_freep(&avctx->coded_side_data[i].data);
+ av_freep(&avctx->coded_side_data);
+ avctx->nb_coded_side_data = 0;
+
+ av_buffer_unref(&avctx->hw_frames_ctx);
+ av_buffer_unref(&avctx->hw_device_ctx);
+
+ if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
+ av_opt_free(avctx->priv_data);
+ av_opt_free(avctx);
+ av_freep(&avctx->priv_data);
+ if (av_codec_is_encoder(avctx->codec)) {
+ av_freep(&avctx->extradata);
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+ av_frame_free(&avctx->coded_frame);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ }
+ avctx->codec = NULL;
+ avctx->active_thread_type = 0;
+
+ return 0;
+}
+
+const char *avcodec_get_name(enum AVCodecID id)
+{
+ const AVCodecDescriptor *cd;
+ AVCodec *codec;
+
+ if (id == AV_CODEC_ID_NONE)
+ return "none";
+ cd = avcodec_descriptor_get(id);
+ if (cd)
+ return cd->name;
+ av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
+ codec = avcodec_find_decoder(id);
+ if (codec)
+ return codec->name;
+ codec = avcodec_find_encoder(id);
+ if (codec)
+ return codec->name;
+ return "unknown_codec";
+}
+
+size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
+{
+ int i, len, ret = 0;
+
+#define TAG_PRINT(x) \
+ (((x) >= '0' && (x) <= '9') || \
+ ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
+ ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
+
+ for (i = 0; i < 4; i++) {
+ len = snprintf(buf, buf_size,
+ TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
+ buf += len;
+ buf_size = buf_size > len ? buf_size - len : 0;
+ ret += len;
+ codec_tag >>= 8;
+ }
+ return ret;
+}
+
+void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
+{
+ const char *codec_type;
+ const char *codec_name;
+ const char *profile = NULL;
+ int64_t bitrate;
+ int new_line = 0;
+ AVRational display_aspect_ratio;
+ const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
+
+ if (!buf || buf_size <= 0)
+ return;
+ codec_type = av_get_media_type_string(enc->codec_type);
+ codec_name = avcodec_get_name(enc->codec_id);
+ profile = avcodec_profile_name(enc->codec_id, enc->profile);
+
+ snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
+ codec_name);
+ buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
+
+ if (enc->codec && strcmp(enc->codec->name, codec_name))
+ snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
+
+ if (profile)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
+ if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
+ && av_log_get_level() >= AV_LOG_VERBOSE
+ && enc->refs)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %d reference frame%s",
+ enc->refs, enc->refs > 1 ? "s" : "");
+
+ if (enc->codec_tag)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
+ av_fourcc2str(enc->codec_tag), enc->codec_tag);
+
+ switch (enc->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ {
+ char detail[256] = "(";
+
+ av_strlcat(buf, separator, buf_size);
+
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
+ av_get_pix_fmt_name(enc->pix_fmt));
+ if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
+ enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
+ av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
+ if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
+ av_strlcatf(detail, sizeof(detail), "%s, ",
+ av_color_range_name(enc->color_range));
+
+ if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
+ enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
+ enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
+ if (enc->colorspace != (int)enc->color_primaries ||
+ enc->colorspace != (int)enc->color_trc) {
+ new_line = 1;
+ av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
+ av_color_space_name(enc->colorspace),
+ av_color_primaries_name(enc->color_primaries),
+ av_color_transfer_name(enc->color_trc));
+ } else
+ av_strlcatf(detail, sizeof(detail), "%s, ",
+ av_get_colorspace_name(enc->colorspace));
+ }
+
+ if (enc->field_order != AV_FIELD_UNKNOWN) {
+ const char *field_order = "progressive";
+ if (enc->field_order == AV_FIELD_TT)
+ field_order = "top first";
+ else if (enc->field_order == AV_FIELD_BB)
+ field_order = "bottom first";
+ else if (enc->field_order == AV_FIELD_TB)
+ field_order = "top coded first (swapped)";
+ else if (enc->field_order == AV_FIELD_BT)
+ field_order = "bottom coded first (swapped)";
+
+ av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
+ }
+
+ if (av_log_get_level() >= AV_LOG_VERBOSE &&
+ enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
+ av_strlcatf(detail, sizeof(detail), "%s, ",
+ av_chroma_location_name(enc->chroma_sample_location));
+
+ if (strlen(detail) > 1) {
+ detail[strlen(detail) - 2] = 0;
+ av_strlcatf(buf, buf_size, "%s)", detail);
+ }
+ }
+
+ if (enc->width) {
+ av_strlcat(buf, new_line ? separator : ", ", buf_size);
+
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ "%dx%d",
+ enc->width, enc->height);
+
+ if (av_log_get_level() >= AV_LOG_VERBOSE &&
+ (enc->width != enc->coded_width ||
+ enc->height != enc->coded_height))
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ " (%dx%d)", enc->coded_width, enc->coded_height);
+
+ if (enc->sample_aspect_ratio.num) {
+ av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
+ enc->width * (int64_t)enc->sample_aspect_ratio.num,
+ enc->height * (int64_t)enc->sample_aspect_ratio.den,
+ 1024 * 1024);
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ " [SAR %d:%d DAR %d:%d]",
+ enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
+ display_aspect_ratio.num, display_aspect_ratio.den);
+ }
+ if (av_log_get_level() >= AV_LOG_DEBUG) {
+ int g = av_gcd(enc->time_base.num, enc->time_base.den);
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %d/%d",
+ enc->time_base.num / g, enc->time_base.den / g);
+ }
+ }
+ if (encode) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", q=%d-%d", enc->qmin, enc->qmax);
+ } else {
+ if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", Closed Captions");
+ if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", lossless");
+ }
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ av_strlcat(buf, separator, buf_size);
+
+ if (enc->sample_rate) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ "%d Hz, ", enc->sample_rate);
+ }
+ av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
+ if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %s", av_get_sample_fmt_name(enc->sample_fmt));
+ }
+ if ( enc->bits_per_raw_sample > 0
+ && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ " (%d bit)", enc->bits_per_raw_sample);
+ if (av_log_get_level() >= AV_LOG_VERBOSE) {
+ if (enc->initial_padding)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", delay %d", enc->initial_padding);
+ if (enc->trailing_padding)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", padding %d", enc->trailing_padding);
+ }
+ break;
+ case AVMEDIA_TYPE_DATA:
+ if (av_log_get_level() >= AV_LOG_DEBUG) {
+ int g = av_gcd(enc->time_base.num, enc->time_base.den);
+ if (g)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %d/%d",
+ enc->time_base.num / g, enc->time_base.den / g);
+ }
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ if (enc->width)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %dx%d", enc->width, enc->height);
+ break;
+ default:
+ return;
+ }
+ if (encode) {
+ if (enc->flags & AV_CODEC_FLAG_PASS1)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", pass 1");
+ if (enc->flags & AV_CODEC_FLAG_PASS2)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", pass 2");
+ }
+ bitrate = get_bit_rate(enc);
+ if (bitrate != 0) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %"PRId64" kb/s", bitrate / 1000);
+ } else if (enc->rc_max_rate > 0) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
+ }
+}
+
+const char *av_get_profile_name(const AVCodec *codec, int profile)
+{
+ const AVProfile *p;
+ if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
+ return NULL;
+
+ for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
+ if (p->profile == profile)
+ return p->name;
+
+ return NULL;
+}
+
+const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
+{
+ const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
+ const AVProfile *p;
+
+ if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
+ return NULL;
+
+ for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
+ if (p->profile == profile)
+ return p->name;
+
+ return NULL;
+}
+
+unsigned avcodec_version(void)
+{
+ av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
+ av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
+ av_assert0(AV_CODEC_ID_SRT==94216);
+ av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
+
+ return LIBAVCODEC_VERSION_INT;
+}
+
+const char *avcodec_configuration(void)
+{
+ return FFMPEG_CONFIGURATION;
+}
+
+const char *avcodec_license(void)
+{
+#define LICENSE_PREFIX "libavcodec license: "
+ return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
+int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
+{
+ switch (codec_id) {
+ case AV_CODEC_ID_8SVX_EXP:
+ case AV_CODEC_ID_8SVX_FIB:
+ case AV_CODEC_ID_ADPCM_CT:
+ case AV_CODEC_ID_ADPCM_IMA_APC:
+ case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
+ case AV_CODEC_ID_ADPCM_IMA_OKI:
+ case AV_CODEC_ID_ADPCM_IMA_WS:
+ case AV_CODEC_ID_ADPCM_G722:
+ case AV_CODEC_ID_ADPCM_YAMAHA:
+ case AV_CODEC_ID_ADPCM_AICA:
+ return 4;
+ case AV_CODEC_ID_DSD_LSBF:
+ case AV_CODEC_ID_DSD_MSBF:
+ case AV_CODEC_ID_DSD_LSBF_PLANAR:
+ case AV_CODEC_ID_DSD_MSBF_PLANAR:
+ case AV_CODEC_ID_PCM_ALAW:
+ case AV_CODEC_ID_PCM_MULAW:
+ case AV_CODEC_ID_PCM_VIDC:
+ case AV_CODEC_ID_PCM_S8:
+ case AV_CODEC_ID_PCM_S8_PLANAR:
+ case AV_CODEC_ID_PCM_U8:
+ case AV_CODEC_ID_PCM_ZORK:
+ case AV_CODEC_ID_SDX2_DPCM:
+ return 8;
+ case AV_CODEC_ID_PCM_S16BE:
+ case AV_CODEC_ID_PCM_S16BE_PLANAR:
+ case AV_CODEC_ID_PCM_S16LE:
+ case AV_CODEC_ID_PCM_S16LE_PLANAR:
+ case AV_CODEC_ID_PCM_U16BE:
+ case AV_CODEC_ID_PCM_U16LE:
+ return 16;
+ case AV_CODEC_ID_PCM_S24DAUD:
+ case AV_CODEC_ID_PCM_S24BE:
+ case AV_CODEC_ID_PCM_S24LE:
+ case AV_CODEC_ID_PCM_S24LE_PLANAR:
+ case AV_CODEC_ID_PCM_U24BE:
+ case AV_CODEC_ID_PCM_U24LE:
+ return 24;
+ case AV_CODEC_ID_PCM_S32BE:
+ case AV_CODEC_ID_PCM_S32LE:
+ case AV_CODEC_ID_PCM_S32LE_PLANAR:
+ case AV_CODEC_ID_PCM_U32BE:
+ case AV_CODEC_ID_PCM_U32LE:
+ case AV_CODEC_ID_PCM_F32BE:
+ case AV_CODEC_ID_PCM_F32LE:
+ case AV_CODEC_ID_PCM_F24LE:
+ case AV_CODEC_ID_PCM_F16LE:
+ return 32;
+ case AV_CODEC_ID_PCM_F64BE:
+ case AV_CODEC_ID_PCM_F64LE:
+ case AV_CODEC_ID_PCM_S64BE:
+ case AV_CODEC_ID_PCM_S64LE:
+ return 64;
+ default:
+ return 0;
+ }
+}
+
+enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
+{
+ static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
+ [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
+ [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
+ [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
+ [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
+ [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
+ [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
+ [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
+ [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
+ [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
+ [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
+ [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
+ };
+ if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
+ return AV_CODEC_ID_NONE;
+ if (be < 0 || be > 1)
+ be = AV_NE(1, 0);
+ return map[fmt][be];
+}
+
+int av_get_bits_per_sample(enum AVCodecID codec_id)
+{
+ switch (codec_id) {
+ case AV_CODEC_ID_ADPCM_SBPRO_2:
+ return 2;
+ case AV_CODEC_ID_ADPCM_SBPRO_3:
+ return 3;
+ case AV_CODEC_ID_ADPCM_SBPRO_4:
+ case AV_CODEC_ID_ADPCM_IMA_WAV:
+ case AV_CODEC_ID_ADPCM_IMA_QT:
+ case AV_CODEC_ID_ADPCM_SWF:
+ case AV_CODEC_ID_ADPCM_MS:
+ return 4;
+ default:
+ return av_get_exact_bits_per_sample(codec_id);
+ }
+}
+
+static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
+ uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
+ uint8_t * extradata, int frame_size, int frame_bytes)
+{
+ int bps = av_get_exact_bits_per_sample(id);
+ int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
+
+ /* codecs with an exact constant bits per sample */
+ if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
+ return (frame_bytes * 8LL) / (bps * ch);
+ bps = bits_per_coded_sample;
+
+ /* codecs with a fixed packet duration */
+ switch (id) {
+ case AV_CODEC_ID_ADPCM_ADX: return 32;
+ case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
+ case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
+ case AV_CODEC_ID_AMR_NB:
+ case AV_CODEC_ID_EVRC:
+ case AV_CODEC_ID_GSM:
+ case AV_CODEC_ID_QCELP:
+ case AV_CODEC_ID_RA_288: return 160;
+ case AV_CODEC_ID_AMR_WB:
+ case AV_CODEC_ID_GSM_MS: return 320;
+ case AV_CODEC_ID_MP1: return 384;
+ case AV_CODEC_ID_ATRAC1: return 512;
+ case AV_CODEC_ID_ATRAC9:
+ case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
+ case AV_CODEC_ID_ATRAC3P: return 2048;
+ case AV_CODEC_ID_MP2:
+ case AV_CODEC_ID_MUSEPACK7: return 1152;
+ case AV_CODEC_ID_AC3: return 1536;
+ }
+
+ if (sr > 0) {
+ /* calc from sample rate */
+ if (id == AV_CODEC_ID_TTA)
+ return 256 * sr / 245;
+ else if (id == AV_CODEC_ID_DST)
+ return 588 * sr / 44100;
+
+ if (ch > 0) {
+ /* calc from sample rate and channels */
+ if (id == AV_CODEC_ID_BINKAUDIO_DCT)
+ return (480 << (sr / 22050)) / ch;
+ }
+
+ if (id == AV_CODEC_ID_MP3)
+ return sr <= 24000 ? 576 : 1152;
+ }
+
+ if (ba > 0) {
+ /* calc from block_align */
+ if (id == AV_CODEC_ID_SIPR) {
+ switch (ba) {
+ case 20: return 160;
+ case 19: return 144;
+ case 29: return 288;
+ case 37: return 480;
+ }
+ } else if (id == AV_CODEC_ID_ILBC) {
+ switch (ba) {
+ case 38: return 160;
+ case 50: return 240;
+ }
+ }
+ }
+
+ if (frame_bytes > 0) {
+ /* calc from frame_bytes only */
+ if (id == AV_CODEC_ID_TRUESPEECH)
+ return 240 * (frame_bytes / 32);
+ if (id == AV_CODEC_ID_NELLYMOSER)
+ return 256 * (frame_bytes / 64);
+ if (id == AV_CODEC_ID_RA_144)
+ return 160 * (frame_bytes / 20);
+
+ if (bps > 0) {
+ /* calc from frame_bytes and bits_per_coded_sample */
+ if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
+ return frame_bytes * 8 / bps;
+ }
+
+ if (ch > 0 && ch < INT_MAX/16) {
+ /* calc from frame_bytes and channels */
+ switch (id) {
+ case AV_CODEC_ID_ADPCM_AFC:
+ return frame_bytes / (9 * ch) * 16;
+ case AV_CODEC_ID_ADPCM_PSX:
+ case AV_CODEC_ID_ADPCM_DTK:
+ return frame_bytes / (16 * ch) * 28;
+ case AV_CODEC_ID_ADPCM_4XM:
+ case AV_CODEC_ID_ADPCM_IMA_DAT4:
+ case AV_CODEC_ID_ADPCM_IMA_ISS:
+ return (frame_bytes - 4 * ch) * 2 / ch;
+ case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
+ return (frame_bytes - 4) * 2 / ch;
+ case AV_CODEC_ID_ADPCM_IMA_AMV:
+ return (frame_bytes - 8) * 2 / ch;
+ case AV_CODEC_ID_ADPCM_THP:
+ case AV_CODEC_ID_ADPCM_THP_LE:
+ if (extradata)
+ return frame_bytes * 14 / (8 * ch);
+ break;
+ case AV_CODEC_ID_ADPCM_XA:
+ return (frame_bytes / 128) * 224 / ch;
+ case AV_CODEC_ID_INTERPLAY_DPCM:
+ return (frame_bytes - 6 - ch) / ch;
+ case AV_CODEC_ID_ROQ_DPCM:
+ return (frame_bytes - 8) / ch;
+ case AV_CODEC_ID_XAN_DPCM:
+ return (frame_bytes - 2 * ch) / ch;
+ case AV_CODEC_ID_MACE3:
+ return 3 * frame_bytes / ch;
+ case AV_CODEC_ID_MACE6:
+ return 6 * frame_bytes / ch;
+ case AV_CODEC_ID_PCM_LXF:
+ return 2 * (frame_bytes / (5 * ch));
+ case AV_CODEC_ID_IAC:
+ case AV_CODEC_ID_IMC:
+ return 4 * frame_bytes / ch;
+ }
+
+ if (tag) {
+ /* calc from frame_bytes, channels, and codec_tag */
+ if (id == AV_CODEC_ID_SOL_DPCM) {
+ if (tag == 3)
+ return frame_bytes / ch;
+ else
+ return frame_bytes * 2 / ch;
+ }
+ }
+
+ if (ba > 0) {
+ /* calc from frame_bytes, channels, and block_align */
+ int blocks = frame_bytes / ba;
+ switch (id) {
+ case AV_CODEC_ID_ADPCM_IMA_WAV:
+ if (bps < 2 || bps > 5)
+ return 0;
+ return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
+ case AV_CODEC_ID_ADPCM_IMA_DK3:
+ return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
+ case AV_CODEC_ID_ADPCM_IMA_DK4:
+ return blocks * (1 + (ba - 4 * ch) * 2 / ch);
+ case AV_CODEC_ID_ADPCM_IMA_RAD:
+ return blocks * ((ba - 4 * ch) * 2 / ch);
+ case AV_CODEC_ID_ADPCM_MS:
+ return blocks * (2 + (ba - 7 * ch) * 2 / ch);
+ case AV_CODEC_ID_ADPCM_MTAF:
+ return blocks * (ba - 16) * 2 / ch;
+ }
+ }
+
+ if (bps > 0) {
+ /* calc from frame_bytes, channels, and bits_per_coded_sample */
+ switch (id) {
+ case AV_CODEC_ID_PCM_DVD:
+ if(bps<4 || frame_bytes<3)
+ return 0;
+ return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
+ case AV_CODEC_ID_PCM_BLURAY:
+ if(bps<4 || frame_bytes<4)
+ return 0;
+ return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
+ case AV_CODEC_ID_S302M:
+ return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
+ }
+ }
+ }
+ }
+
+ /* Fall back on using frame_size */
+ if (frame_size > 1 && frame_bytes)
+ return frame_size;
+
+ //For WMA we currently have no other means to calculate duration thus we
+ //do it here by assuming CBR, which is true for all known cases.
+ if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
+ if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
+ return (frame_bytes * 8LL * sr) / bitrate;
+ }
+
+ return 0;
+}
+
+int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
+{
+ return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
+ avctx->channels, avctx->block_align,
+ avctx->codec_tag, avctx->bits_per_coded_sample,
+ avctx->bit_rate, avctx->extradata, avctx->frame_size,
+ frame_bytes);
+}
+
+int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
+{
+ return get_audio_frame_duration(par->codec_id, par->sample_rate,
+ par->channels, par->block_align,
+ par->codec_tag, par->bits_per_coded_sample,
+ par->bit_rate, par->extradata, par->frame_size,
+ frame_bytes);
+}
+
+#if !HAVE_THREADS
+int ff_thread_init(AVCodecContext *s)
+{
+ return -1;
+}
+
+#endif
+
+unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
+{
+ unsigned int n = 0;
+
+ while (v >= 0xff) {
+ *s++ = 0xff;
+ v -= 0xff;
+ n++;
+ }
+ *s = v;
+ n++;
+ return n;
+}
+
+int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
+{
+ int i;
+ for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
+ return i;
+}
+
+const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
+{
+ int i;
+ if (!codec->hw_configs || index < 0)
+ return NULL;
+ for (i = 0; i <= index; i++)
+ if (!codec->hw_configs[i])
+ return NULL;
+ return &codec->hw_configs[index]->public;
+}
+
+#if FF_API_USER_VISIBLE_AVHWACCEL
+AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
+{
+ return NULL;
+}
+
+void av_register_hwaccel(AVHWAccel *hwaccel)
+{
+}
+#endif
+
+#if FF_API_LOCKMGR
+int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
+{
+ return 0;
+}
+#endif
+
+unsigned int avpriv_toupper4(unsigned int x)
+{
+ return av_toupper(x & 0xFF) +
+ (av_toupper((x >> 8) & 0xFF) << 8) +
+ (av_toupper((x >> 16) & 0xFF) << 16) +
+((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
+}
+
+int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
+{
+ int ret;
+
+ dst->owner[0] = src->owner[0];
+ dst->owner[1] = src->owner[1];
+
+ ret = av_frame_ref(dst->f, src->f);
+ if (ret < 0)
+ return ret;
+
+ av_assert0(!dst->progress);
+
+ if (src->progress &&
+ !(dst->progress = av_buffer_ref(src->progress))) {
+ ff_thread_release_buffer(dst->owner[0], dst);
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+#if !HAVE_THREADS
+
+enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
+{
+ return ff_get_format(avctx, fmt);
+}
+
+int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
+{
+ f->owner[0] = f->owner[1] = avctx;
+ return ff_get_buffer(avctx, f->f, flags);
+}
+
+void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
+{
+ if (f->f)
+ av_frame_unref(f->f);
+}
+
+void ff_thread_finish_setup(AVCodecContext *avctx)
+{
+}
+
+void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
+{
+}
+
+void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
+{
+}
+
+int ff_thread_can_start_frame(AVCodecContext *avctx)
+{
+ return 1;
+}
+
+int ff_alloc_entries(AVCodecContext *avctx, int count)
+{
+ return 0;
+}
+
+void ff_reset_entries(AVCodecContext *avctx)
+{
+}
+
+void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
+{
+}
+
+void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
+{
+}
+
+#endif
+
+int avcodec_is_open(AVCodecContext *s)
+{
+ return !!s->internal;
+}
+
+int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
+{
+ int ret;
+ char *str;
+
+ ret = av_bprint_finalize(buf, &str);
+ if (ret < 0)
+ return ret;
+ if (!av_bprint_is_complete(buf)) {
+ av_free(str);
+ return AVERROR(ENOMEM);
+ }
+
+ avctx->extradata = str;
+ /* Note: the string is NUL terminated (so extradata can be read as a
+ * string), but the ending character is not accounted in the size (in
+ * binary formats you are likely not supposed to mux that character). When
+ * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
+ * zeros. */
+ avctx->extradata_size = buf->len;
+ return 0;
+}
+
+const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
+ const uint8_t *end,
+ uint32_t *av_restrict state)
+{
+ int i;
+
+ av_assert0(p <= end);
+ if (p >= end)
+ return end;
+
+ for (i = 0; i < 3; i++) {
+ uint32_t tmp = *state << 8;
+ *state = tmp + *(p++);
+ if (tmp == 0x100 || p == end)
+ return p;
+ }
+
+ while (p < end) {
+ if (p[-1] > 1 ) p += 3;
+ else if (p[-2] ) p += 2;
+ else if (p[-3]|(p[-1]-1)) p++;
+ else {
+ p++;
+ break;
+ }
+ }
+
+ p = FFMIN(p, end) - 4;
+ *state = AV_RB32(p);
+
+ return p + 4;
+}
+
+AVCPBProperties *av_cpb_properties_alloc(size_t *size)
+{
+ AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
+ if (!props)
+ return NULL;
+
+ if (size)
+ *size = sizeof(*props);
+
+ props->vbv_delay = UINT64_MAX;
+
+ return props;
+}
+
+AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
+{
+ AVPacketSideData *tmp;
+ AVCPBProperties *props;
+ size_t size;
+
+ props = av_cpb_properties_alloc(&size);
+ if (!props)
+ return NULL;
+
+ tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
+ if (!tmp) {
+ av_freep(&props);
+ return NULL;
+ }
+
+ avctx->coded_side_data = tmp;
+ avctx->nb_coded_side_data++;
+
+ avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
+ avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
+ avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
+
+ return props;
+}
+
+static void codec_parameters_reset(AVCodecParameters *par)
+{
+ av_freep(&par->extradata);
+
+ memset(par, 0, sizeof(*par));
+
+ par->codec_type = AVMEDIA_TYPE_UNKNOWN;
+ par->codec_id = AV_CODEC_ID_NONE;
+ par->format = -1;
+ par->field_order = AV_FIELD_UNKNOWN;
+ par->color_range = AVCOL_RANGE_UNSPECIFIED;
+ par->color_primaries = AVCOL_PRI_UNSPECIFIED;
+ par->color_trc = AVCOL_TRC_UNSPECIFIED;
+ par->color_space = AVCOL_SPC_UNSPECIFIED;
+ par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
+ par->sample_aspect_ratio = (AVRational){ 0, 1 };
+ par->profile = FF_PROFILE_UNKNOWN;
+ par->level = FF_LEVEL_UNKNOWN;
+}
+
+AVCodecParameters *avcodec_parameters_alloc(void)
+{
+ AVCodecParameters *par = av_mallocz(sizeof(*par));
+
+ if (!par)
+ return NULL;
+ codec_parameters_reset(par);
+ return par;
+}
+
+void avcodec_parameters_free(AVCodecParameters **ppar)
+{
+ AVCodecParameters *par = *ppar;
+
+ if (!par)
+ return;
+ codec_parameters_reset(par);
+
+ av_freep(ppar);
+}
+
+int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
+{
+ codec_parameters_reset(dst);
+ memcpy(dst, src, sizeof(*dst));
+
+ dst->extradata = NULL;
+ dst->extradata_size = 0;
+ if (src->extradata) {
+ dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!dst->extradata)
+ return AVERROR(ENOMEM);
+ memcpy(dst->extradata, src->extradata, src->extradata_size);
+ dst->extradata_size = src->extradata_size;
+ }
+
+ return 0;
+}
+
+int avcodec_parameters_from_context(AVCodecParameters *par,
+ const AVCodecContext *codec)
+{
+ codec_parameters_reset(par);
+
+ par->codec_type = codec->codec_type;
+ par->codec_id = codec->codec_id;
+ par->codec_tag = codec->codec_tag;
+
+ par->bit_rate = codec->bit_rate;
+ par->bits_per_coded_sample = codec->bits_per_coded_sample;
+ par->bits_per_raw_sample = codec->bits_per_raw_sample;
+ par->profile = codec->profile;
+ par->level = codec->level;
+
+ switch (par->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ par->format = codec->pix_fmt;
+ par->width = codec->width;
+ par->height = codec->height;
+ par->field_order = codec->field_order;
+ par->color_range = codec->color_range;
+ par->color_primaries = codec->color_primaries;
+ par->color_trc = codec->color_trc;
+ par->color_space = codec->colorspace;
+ par->chroma_location = codec->chroma_sample_location;
+ par->sample_aspect_ratio = codec->sample_aspect_ratio;
+ par->video_delay = codec->has_b_frames;
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ par->format = codec->sample_fmt;
+ par->channel_layout = codec->channel_layout;
+ par->channels = codec->channels;
+ par->sample_rate = codec->sample_rate;
+ par->block_align = codec->block_align;
+ par->frame_size = codec->frame_size;
+ par->initial_padding = codec->initial_padding;
+ par->trailing_padding = codec->trailing_padding;
+ par->seek_preroll = codec->seek_preroll;
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ par->width = codec->width;
+ par->height = codec->height;
+ break;
+ }
+
+ if (codec->extradata) {
+ par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!par->extradata)
+ return AVERROR(ENOMEM);
+ memcpy(par->extradata, codec->extradata, codec->extradata_size);
+ par->extradata_size = codec->extradata_size;
+ }
+
+ return 0;
+}
+
+int avcodec_parameters_to_context(AVCodecContext *codec,
+ const AVCodecParameters *par)
+{
+ codec->codec_type = par->codec_type;
+ codec->codec_id = par->codec_id;
+ codec->codec_tag = par->codec_tag;
+
+ codec->bit_rate = par->bit_rate;
+ codec->bits_per_coded_sample = par->bits_per_coded_sample;
+ codec->bits_per_raw_sample = par->bits_per_raw_sample;
+ codec->profile = par->profile;
+ codec->level = par->level;
+
+ switch (par->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ codec->pix_fmt = par->format;
+ codec->width = par->width;
+ codec->height = par->height;
+ codec->field_order = par->field_order;
+ codec->color_range = par->color_range;
+ codec->color_primaries = par->color_primaries;
+ codec->color_trc = par->color_trc;
+ codec->colorspace = par->color_space;
+ codec->chroma_sample_location = par->chroma_location;
+ codec->sample_aspect_ratio = par->sample_aspect_ratio;
+ codec->has_b_frames = par->video_delay;
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ codec->sample_fmt = par->format;
+ codec->channel_layout = par->channel_layout;
+ codec->channels = par->channels;
+ codec->sample_rate = par->sample_rate;
+ codec->block_align = par->block_align;
+ codec->frame_size = par->frame_size;
+ codec->delay =
+ codec->initial_padding = par->initial_padding;
+ codec->trailing_padding = par->trailing_padding;
+ codec->seek_preroll = par->seek_preroll;
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ codec->width = par->width;
+ codec->height = par->height;
+ break;
+ }
+
+ if (par->extradata) {
+ av_freep(&codec->extradata);
+ codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!codec->extradata)
+ return AVERROR(ENOMEM);
+ memcpy(codec->extradata, par->extradata, par->extradata_size);
+ codec->extradata_size = par->extradata_size;
+ }
+
+ return 0;
+}
+
+int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
+ void **data, size_t *sei_size)
+{
+ AVFrameSideData *side_data = NULL;
+ uint8_t *sei_data;
+
+ if (frame)
+ side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
+
+ if (!side_data) {
+ *data = NULL;
+ return 0;
+ }
+
+ *sei_size = side_data->size + 11;
+ *data = av_mallocz(*sei_size + prefix_len);
+ if (!*data)
+ return AVERROR(ENOMEM);
+ sei_data = (uint8_t*)*data + prefix_len;
+
+ // country code
+ sei_data[0] = 181;
+ sei_data[1] = 0;
+ sei_data[2] = 49;
+
+ /**
+ * 'GA94' is standard in North America for ATSC, but hard coding
+ * this style may not be the right thing to do -- other formats
+ * do exist. This information is not available in the side_data
+ * so we are going with this right now.
+ */
+ AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
+ sei_data[7] = 3;
+ sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
+ sei_data[9] = 0;
+
+ memcpy(sei_data + 10, side_data->data, side_data->size);
+
+ sei_data[side_data->size+10] = 255;
+
+ return 0;
+}
+
+int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
+{
+ AVRational framerate = avctx->framerate;
+ int bits_per_coded_sample = avctx->bits_per_coded_sample;
+ int64_t bitrate;
+
+ if (!(framerate.num && framerate.den))
+ framerate = av_inv_q(avctx->time_base);
+ if (!(framerate.num && framerate.den))
+ return 0;
+
+ if (!bits_per_coded_sample) {
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
+ bits_per_coded_sample = av_get_bits_per_pixel(desc);
+ }
+ bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
+ framerate.num / framerate.den;
+
+ return bitrate;
+}
+
+int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
+ const int * array_valid_values, int default_value)
+{
+ int i = 0, ref_val;
+
+ while (1) {
+ ref_val = array_valid_values[i];
+ if (ref_val == INT_MAX)
+ break;
+ if (val == ref_val)
+ return val;
+ i++;
+ }
+ /* val is not a valid value */
+ av_log(ctx, AV_LOG_DEBUG,
+ "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
+ return default_value;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 00:08:19 +0000