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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /media/ffvpx/libavcodec/encode.c
parentInitial commit. (diff)
downloadfirefox-esr-upstream.tar.xz
firefox-esr-upstream.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--media/ffvpx/libavcodec/encode.c774
1 files changed, 774 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/encode.c b/media/ffvpx/libavcodec/encode.c
new file mode 100644
index 0000000000..041fc7670e
--- /dev/null
+++ b/media/ffvpx/libavcodec/encode.c
@@ -0,0 +1,774 @@
+/*
+ * generic encoding-related code
+ *
+ * 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
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/frame.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/internal.h"
+#include "libavutil/samplefmt.h"
+
+#include "avcodec.h"
+#include "codec_internal.h"
+#include "encode.h"
+#include "frame_thread_encoder.h"
+#include "internal.h"
+
+int ff_alloc_packet(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
+{
+ if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
+ size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
+ return AVERROR(EINVAL);
+ }
+
+ av_assert0(!avpkt->data);
+
+ av_fast_padded_malloc(&avctx->internal->byte_buffer,
+ &avctx->internal->byte_buffer_size, size);
+ avpkt->data = avctx->internal->byte_buffer;
+ if (!avpkt->data) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
+ return AVERROR(ENOMEM);
+ }
+ avpkt->size = size;
+
+ return 0;
+}
+
+int avcodec_default_get_encode_buffer(AVCodecContext *avctx, AVPacket *avpkt, int flags)
+{
+ int ret;
+
+ if (avpkt->size < 0 || avpkt->size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
+ return AVERROR(EINVAL);
+
+ if (avpkt->data || avpkt->buf) {
+ av_log(avctx, AV_LOG_ERROR, "avpkt->{data,buf} != NULL in avcodec_default_get_encode_buffer()\n");
+ return AVERROR(EINVAL);
+ }
+
+ ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %d\n", avpkt->size);
+ return ret;
+ }
+ avpkt->data = avpkt->buf->data;
+
+ return 0;
+}
+
+int ff_get_encode_buffer(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int flags)
+{
+ int ret;
+
+ if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
+ return AVERROR(EINVAL);
+
+ av_assert0(!avpkt->data && !avpkt->buf);
+
+ avpkt->size = size;
+ ret = avctx->get_encode_buffer(avctx, avpkt, flags);
+ if (ret < 0)
+ goto fail;
+
+ if (!avpkt->data || !avpkt->buf) {
+ av_log(avctx, AV_LOG_ERROR, "No buffer returned by get_encode_buffer()\n");
+ ret = AVERROR(EINVAL);
+ goto fail;
+ }
+ memset(avpkt->data + avpkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+
+ ret = 0;
+fail:
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_encode_buffer() failed\n");
+ av_packet_unref(avpkt);
+ }
+
+ return ret;
+}
+
+static int encode_make_refcounted(AVCodecContext *avctx, AVPacket *avpkt)
+{
+ uint8_t *data = avpkt->data;
+ int ret;
+
+ if (avpkt->buf)
+ return 0;
+
+ avpkt->data = NULL;
+ ret = ff_get_encode_buffer(avctx, avpkt, avpkt->size, 0);
+ if (ret < 0)
+ return ret;
+ memcpy(avpkt->data, data, avpkt->size);
+
+ return 0;
+}
+
+/**
+ * Pad last frame with silence.
+ */
+static int pad_last_frame(AVCodecContext *s, AVFrame *frame, const AVFrame *src, int out_samples)
+{
+ int ret;
+
+ frame->format = src->format;
+ frame->nb_samples = out_samples;
+ ret = av_channel_layout_copy(&frame->ch_layout, &s->ch_layout);
+ if (ret < 0)
+ goto fail;
+ ret = av_frame_get_buffer(frame, 0);
+ if (ret < 0)
+ goto fail;
+
+ ret = av_frame_copy_props(frame, src);
+ if (ret < 0)
+ goto fail;
+
+ if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
+ src->nb_samples, s->ch_layout.nb_channels,
+ s->sample_fmt)) < 0)
+ goto fail;
+ if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
+ frame->nb_samples - src->nb_samples,
+ s->ch_layout.nb_channels, s->sample_fmt)) < 0)
+ goto fail;
+
+ return 0;
+
+fail:
+ av_frame_unref(frame);
+ s->internal->last_audio_frame = 0;
+ return ret;
+}
+
+int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+ const AVSubtitle *sub)
+{
+ int ret;
+ if (sub->start_display_time) {
+ av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
+ return -1;
+ }
+
+ ret = ffcodec(avctx->codec)->cb.encode_sub(avctx, buf, buf_size, sub);
+ avctx->frame_num++;
+#if FF_API_AVCTX_FRAME_NUMBER
+FF_DISABLE_DEPRECATION_WARNINGS
+ avctx->frame_number = avctx->frame_num;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ return ret;
+}
+
+int ff_encode_get_frame(AVCodecContext *avctx, AVFrame *frame)
+{
+ AVCodecInternal *avci = avctx->internal;
+
+ if (avci->draining)
+ return AVERROR_EOF;
+
+ if (!avci->buffer_frame->buf[0])
+ return AVERROR(EAGAIN);
+
+ av_frame_move_ref(frame, avci->buffer_frame);
+
+ return 0;
+}
+
+int ff_encode_reordered_opaque(AVCodecContext *avctx,
+ AVPacket *pkt, const AVFrame *frame)
+{
+#if FF_API_REORDERED_OPAQUE
+FF_DISABLE_DEPRECATION_WARNINGS
+ avctx->reordered_opaque = frame->reordered_opaque;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE) {
+ int ret = av_buffer_replace(&pkt->opaque_ref, frame->opaque_ref);
+ if (ret < 0)
+ return ret;
+ pkt->opaque = frame->opaque;
+ }
+
+ return 0;
+}
+
+int ff_encode_encode_cb(AVCodecContext *avctx, AVPacket *avpkt,
+ AVFrame *frame, int *got_packet)
+{
+ const FFCodec *const codec = ffcodec(avctx->codec);
+ int ret;
+
+ ret = codec->cb.encode(avctx, avpkt, frame, got_packet);
+ emms_c();
+ av_assert0(ret <= 0);
+
+ if (!ret && *got_packet) {
+ if (avpkt->data) {
+ ret = encode_make_refcounted(avctx, avpkt);
+ if (ret < 0)
+ goto unref;
+ // Date returned by encoders must always be ref-counted
+ av_assert0(avpkt->buf);
+ }
+
+ // set the timestamps for the simple no-delay case
+ // encoders with delay have to set the timestamps themselves
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) ||
+ (frame && (codec->caps_internal & FF_CODEC_CAP_EOF_FLUSH))) {
+ if (avpkt->pts == AV_NOPTS_VALUE)
+ avpkt->pts = frame->pts;
+
+ if (!avpkt->duration) {
+ if (frame->duration)
+ avpkt->duration = frame->duration;
+ else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
+ avpkt->duration = ff_samples_to_time_base(avctx,
+ frame->nb_samples);
+ }
+ }
+
+ ret = ff_encode_reordered_opaque(avctx, avpkt, frame);
+ if (ret < 0)
+ goto unref;
+ }
+
+ // dts equals pts unless there is reordering
+ // there can be no reordering if there is no encoder delay
+ if (!(avctx->codec_descriptor->props & AV_CODEC_PROP_REORDER) ||
+ !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) ||
+ (codec->caps_internal & FF_CODEC_CAP_EOF_FLUSH))
+ avpkt->dts = avpkt->pts;
+ } else {
+unref:
+ av_packet_unref(avpkt);
+ }
+
+ if (frame)
+ av_frame_unref(frame);
+
+ return ret;
+}
+
+static int encode_simple_internal(AVCodecContext *avctx, AVPacket *avpkt)
+{
+ AVCodecInternal *avci = avctx->internal;
+ AVFrame *frame = avci->in_frame;
+ const FFCodec *const codec = ffcodec(avctx->codec);
+ int got_packet;
+ int ret;
+
+ if (avci->draining_done)
+ return AVERROR_EOF;
+
+ if (!frame->buf[0] && !avci->draining) {
+ av_frame_unref(frame);
+ ret = ff_encode_get_frame(avctx, frame);
+ if (ret < 0 && ret != AVERROR_EOF)
+ return ret;
+ }
+
+ if (!frame->buf[0]) {
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY ||
+ avci->frame_thread_encoder))
+ return AVERROR_EOF;
+
+ // Flushing is signaled with a NULL frame
+ frame = NULL;
+ }
+
+ got_packet = 0;
+
+ av_assert0(codec->cb_type == FF_CODEC_CB_TYPE_ENCODE);
+
+ if (CONFIG_FRAME_THREAD_ENCODER && avci->frame_thread_encoder)
+ /* This will unref frame. */
+ ret = ff_thread_video_encode_frame(avctx, avpkt, frame, &got_packet);
+ else {
+ ret = ff_encode_encode_cb(avctx, avpkt, frame, &got_packet);
+ }
+
+ if (avci->draining && !got_packet)
+ avci->draining_done = 1;
+
+ return ret;
+}
+
+static int encode_simple_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
+{
+ int ret;
+
+ while (!avpkt->data && !avpkt->side_data) {
+ ret = encode_simple_internal(avctx, avpkt);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int encode_receive_packet_internal(AVCodecContext *avctx, AVPacket *avpkt)
+{
+ AVCodecInternal *avci = avctx->internal;
+ int ret;
+
+ if (avci->draining_done)
+ return AVERROR_EOF;
+
+ av_assert0(!avpkt->data && !avpkt->side_data);
+
+ if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
+ if ((avctx->flags & AV_CODEC_FLAG_PASS1) && avctx->stats_out)
+ avctx->stats_out[0] = '\0';
+ if (av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx))
+ return AVERROR(EINVAL);
+ }
+
+ if (ffcodec(avctx->codec)->cb_type == FF_CODEC_CB_TYPE_RECEIVE_PACKET) {
+ ret = ffcodec(avctx->codec)->cb.receive_packet(avctx, avpkt);
+ if (ret < 0)
+ av_packet_unref(avpkt);
+ else
+ // Encoders must always return ref-counted buffers.
+ // Side-data only packets have no data and can be not ref-counted.
+ av_assert0(!avpkt->data || avpkt->buf);
+ } else
+ ret = encode_simple_receive_packet(avctx, avpkt);
+ if (ret >= 0)
+ avpkt->flags |= avci->intra_only_flag;
+
+ if (ret == AVERROR_EOF)
+ avci->draining_done = 1;
+
+ return ret;
+}
+
+#if CONFIG_LCMS2
+static int encode_generate_icc_profile(AVCodecContext *avctx, AVFrame *frame)
+{
+ enum AVColorTransferCharacteristic trc = frame->color_trc;
+ enum AVColorPrimaries prim = frame->color_primaries;
+ const FFCodec *const codec = ffcodec(avctx->codec);
+ AVCodecInternal *avci = avctx->internal;
+ cmsHPROFILE profile;
+ int ret;
+
+ /* don't generate ICC profiles if disabled or unsupported */
+ if (!(avctx->flags2 & AV_CODEC_FLAG2_ICC_PROFILES))
+ return 0;
+ if (!(codec->caps_internal & FF_CODEC_CAP_ICC_PROFILES))
+ return 0;
+
+ if (trc == AVCOL_TRC_UNSPECIFIED)
+ trc = avctx->color_trc;
+ if (prim == AVCOL_PRI_UNSPECIFIED)
+ prim = avctx->color_primaries;
+ if (trc == AVCOL_TRC_UNSPECIFIED || prim == AVCOL_PRI_UNSPECIFIED)
+ return 0; /* can't generate ICC profile with missing csp tags */
+
+ if (av_frame_get_side_data(frame, AV_FRAME_DATA_ICC_PROFILE))
+ return 0; /* don't overwrite existing ICC profile */
+
+ if (!avci->icc.avctx) {
+ ret = ff_icc_context_init(&avci->icc, avctx);
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = ff_icc_profile_generate(&avci->icc, prim, trc, &profile);
+ if (ret < 0)
+ return ret;
+
+ ret = ff_icc_profile_attach(&avci->icc, profile, frame);
+ cmsCloseProfile(profile);
+ return ret;
+}
+#else /* !CONFIG_LCMS2 */
+static int encode_generate_icc_profile(av_unused AVCodecContext *c, av_unused AVFrame *f)
+{
+ return 0;
+}
+#endif
+
+static int encode_send_frame_internal(AVCodecContext *avctx, const AVFrame *src)
+{
+ AVCodecInternal *avci = avctx->internal;
+ AVFrame *dst = avci->buffer_frame;
+ int ret;
+
+ if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
+ /* extract audio service type metadata */
+ AVFrameSideData *sd = av_frame_get_side_data(src, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
+ if (sd && sd->size >= sizeof(enum AVAudioServiceType))
+ avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
+
+ /* check for valid frame size */
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
+ /* if we already got an undersized frame, that must have been the last */
+ if (avctx->internal->last_audio_frame) {
+ av_log(avctx, AV_LOG_ERROR, "frame_size (%d) was not respected for a non-last frame\n", avctx->frame_size);
+ return AVERROR(EINVAL);
+ }
+ if (src->nb_samples > avctx->frame_size) {
+ av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) > frame_size (%d)\n", src->nb_samples, avctx->frame_size);
+ return AVERROR(EINVAL);
+ }
+ if (src->nb_samples < avctx->frame_size) {
+ avctx->internal->last_audio_frame = 1;
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)) {
+ int pad_samples = avci->pad_samples ? avci->pad_samples : avctx->frame_size;
+ int out_samples = (src->nb_samples + pad_samples - 1) / pad_samples * pad_samples;
+
+ if (out_samples != src->nb_samples) {
+ ret = pad_last_frame(avctx, dst, src, out_samples);
+ if (ret < 0)
+ return ret;
+ goto finish;
+ }
+ }
+ }
+ }
+ }
+
+ ret = av_frame_ref(dst, src);
+ if (ret < 0)
+ return ret;
+
+finish:
+
+#if FF_API_PKT_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+ if (dst->pkt_duration && dst->pkt_duration != dst->duration)
+ dst->duration = dst->pkt_duration;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
+ ret = encode_generate_icc_profile(avctx, dst);
+ if (ret < 0)
+ return ret;
+ }
+
+ // unset frame duration unless AV_CODEC_FLAG_FRAME_DURATION is set,
+ // since otherwise we cannot be sure that whatever value it has is in the
+ // right timebase, so we would produce an incorrect value, which is worse
+ // than none at all
+ if (!(avctx->flags & AV_CODEC_FLAG_FRAME_DURATION))
+ dst->duration = 0;
+
+ return 0;
+}
+
+int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
+{
+ AVCodecInternal *avci = avctx->internal;
+ int ret;
+
+ if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
+ return AVERROR(EINVAL);
+
+ if (avci->draining)
+ return AVERROR_EOF;
+
+ if (avci->buffer_frame->buf[0])
+ return AVERROR(EAGAIN);
+
+ if (!frame) {
+ avci->draining = 1;
+ } else {
+ ret = encode_send_frame_internal(avctx, frame);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (!avci->buffer_pkt->data && !avci->buffer_pkt->side_data) {
+ ret = encode_receive_packet_internal(avctx, avci->buffer_pkt);
+ if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
+ return ret;
+ }
+
+ avctx->frame_num++;
+#if FF_API_AVCTX_FRAME_NUMBER
+FF_DISABLE_DEPRECATION_WARNINGS
+ avctx->frame_number = avctx->frame_num;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ return 0;
+}
+
+int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
+{
+ AVCodecInternal *avci = avctx->internal;
+ int ret;
+
+ av_packet_unref(avpkt);
+
+ if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
+ return AVERROR(EINVAL);
+
+ if (avci->buffer_pkt->data || avci->buffer_pkt->side_data) {
+ av_packet_move_ref(avpkt, avci->buffer_pkt);
+ } else {
+ ret = encode_receive_packet_internal(avctx, avpkt);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int encode_preinit_video(AVCodecContext *avctx)
+{
+ const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
+ int i;
+
+ 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) {
+ 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));
+ return AVERROR(EINVAL);
+ }
+ 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->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");
+ return AVERROR(EINVAL);
+ }
+
+ 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);
+ return AVERROR(EINVAL);
+ }
+
+ 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");
+ return AVERROR(EINVAL);
+ }
+ 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));
+ return AVERROR(EINVAL);
+ }
+ avctx->sw_pix_fmt = frames_ctx->sw_format;
+ }
+
+ return 0;
+}
+
+static int encode_preinit_audio(AVCodecContext *avctx)
+{
+ int i;
+
+ 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->ch_layout.nb_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));
+ return AVERROR(EINVAL);
+ }
+ }
+ 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);
+ return AVERROR(EINVAL);
+ }
+ }
+ if (avctx->sample_rate < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
+ avctx->sample_rate);
+ return AVERROR(EINVAL);
+ }
+ if (avctx->codec->ch_layouts) {
+ for (i = 0; avctx->codec->ch_layouts[i].nb_channels; i++) {
+ if (!av_channel_layout_compare(&avctx->ch_layout, &avctx->codec->ch_layouts[i]))
+ break;
+ }
+ if (!avctx->codec->ch_layouts[i].nb_channels) {
+ char buf[512];
+ int ret = av_channel_layout_describe(&avctx->ch_layout, buf, sizeof(buf));
+ if (ret > 0)
+ av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
+ return AVERROR(EINVAL);
+ }
+ }
+
+ if (!avctx->bits_per_raw_sample)
+ avctx->bits_per_raw_sample = 8 * av_get_bytes_per_sample(avctx->sample_fmt);
+
+ return 0;
+}
+
+int ff_encode_preinit(AVCodecContext *avctx)
+{
+ AVCodecInternal *avci = avctx->internal;
+ int ret = 0;
+
+ if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE &&
+ !(avctx->codec->capabilities & AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE)) {
+ av_log(avctx, AV_LOG_ERROR, "The copy_opaque flag is set, but the "
+ "encoder does not support it.\n");
+ return AVERROR(EINVAL);
+ }
+
+ switch (avctx->codec_type) {
+ case AVMEDIA_TYPE_VIDEO: ret = encode_preinit_video(avctx); break;
+ case AVMEDIA_TYPE_AUDIO: ret = encode_preinit_audio(avctx); break;
+ }
+ if (ret < 0)
+ return ret;
+
+ 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->codec_descriptor->props & AV_CODEC_PROP_INTRA_ONLY)
+ avctx->internal->intra_only_flag = AV_PKT_FLAG_KEY;
+
+ if (ffcodec(avctx->codec)->cb_type == FF_CODEC_CB_TYPE_ENCODE) {
+ avci->in_frame = av_frame_alloc();
+ if (!avci->in_frame)
+ return AVERROR(ENOMEM);
+ }
+
+ if ((avctx->flags & AV_CODEC_FLAG_RECON_FRAME)) {
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_ENCODER_RECON_FRAME)) {
+ av_log(avctx, AV_LOG_ERROR, "Reconstructed frame output requested "
+ "from an encoder not supporting it\n");
+ return AVERROR(ENOSYS);
+ }
+
+ avci->recon_frame = av_frame_alloc();
+ if (!avci->recon_frame)
+ return AVERROR(ENOMEM);
+ }
+
+ if (CONFIG_FRAME_THREAD_ENCODER) {
+ ret = ff_frame_thread_encoder_init(avctx);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+int ff_encode_alloc_frame(AVCodecContext *avctx, AVFrame *frame)
+{
+ int ret;
+
+ switch (avctx->codec->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ frame->format = avctx->pix_fmt;
+ if (frame->width <= 0 || frame->height <= 0) {
+ frame->width = FFMAX(avctx->width, avctx->coded_width);
+ frame->height = FFMAX(avctx->height, avctx->coded_height);
+ }
+
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ frame->sample_rate = avctx->sample_rate;
+ frame->format = avctx->sample_fmt;
+ if (!frame->ch_layout.nb_channels) {
+ ret = av_channel_layout_copy(&frame->ch_layout, &avctx->ch_layout);
+ if (ret < 0)
+ return ret;
+ }
+ break;
+ }
+
+ ret = avcodec_default_get_buffer2(avctx, frame, 0);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ av_frame_unref(frame);
+ return ret;
+ }
+
+ return 0;
+}
+
+int ff_encode_receive_frame(AVCodecContext *avctx, AVFrame *frame)
+{
+ AVCodecInternal *avci = avctx->internal;
+
+ if (!avci->recon_frame)
+ return AVERROR(EINVAL);
+ if (!avci->recon_frame->buf[0])
+ return avci->draining_done ? AVERROR_EOF : AVERROR(EAGAIN);
+
+ av_frame_move_ref(frame, avci->recon_frame);
+ return 0;
+}