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Diffstat (limited to '')
| -rw-r--r-- | media/ffvpx/libavcodec/utils.c | 1170 |
1 files changed, 1170 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/utils.c b/media/ffvpx/libavcodec/utils.c new file mode 100644 index 0000000000..599da21dba --- /dev/null +++ b/media/ffvpx/libavcodec/utils.c @@ -0,0 +1,1170 @@ +/* + * 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/avassert.h" +#include "libavutil/channel_layout.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/mem.h" +#include "libavutil/pixdesc.h" +#include "libavutil/imgutils.h" +#include "libavutil/pixfmt.h" +#include "avcodec.h" +#include "codec.h" +#include "codec_internal.h" +#include "decode.h" +#include "hwconfig.h" +#include "thread.h" +#include "threadframe.h" +#include "internal.h" +#include "put_bits.h" +#include "startcode.h" +#include <stdlib.h> +#include <limits.h> + +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; + } + av_fast_mallocz(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE); + if (*p) + 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; + } + av_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE); + if (*p) + memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE); +} + +int av_codec_is_encoder(const AVCodec *avcodec) +{ + const FFCodec *const codec = ffcodec(avcodec); + return codec && (codec->cb_type == FF_CODEC_CB_TYPE_ENCODE || + codec->cb_type == FF_CODEC_CB_TYPE_ENCODE_SUB || + codec->cb_type == FF_CODEC_CB_TYPE_RECEIVE_PACKET); +} + +int av_codec_is_decoder(const AVCodec *avcodec) +{ + const FFCodec *const codec = ffcodec(avcodec); + return codec && (codec->cb_type == FF_CODEC_CB_TYPE_DECODE || + codec->cb_type == FF_CODEC_CB_TYPE_DECODE_SUB || + codec->cb_type == FF_CODEC_CB_TYPE_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 + if (s->codec_id == AV_CODEC_ID_BINKVIDEO) + w_align = 16*2; + 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_ARGO || + s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) { + w_align = 8; + h_align = 8; + } + if (s->codec_id == AV_CODEC_ID_MJPEG || + s->codec_id == AV_CODEC_ID_MJPEGB || + s->codec_id == AV_CODEC_ID_LJPEG || + s->codec_id == AV_CODEC_ID_SMVJPEG || + s->codec_id == AV_CODEC_ID_AMV || + s->codec_id == AV_CODEC_ID_SP5X || + s->codec_id == AV_CODEC_ID_JPEGLS) { + w_align = 8; + h_align = 2*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; + case AV_PIX_FMT_BGR0: + if (s->codec_id == AV_CODEC_ID_ARGO) { + w_align = 8; + h_align = 8; + } + 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_VC1 || s->codec_id == AV_CODEC_ID_WMV3 || + 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); + } + if (s->codec_id == AV_CODEC_ID_SVQ3) { + *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); +} +#if FF_API_AVCODEC_CHROMA_POS +int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos) +{ + return av_chroma_location_enum_to_pos(xpos, ypos, pos); +} + +enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos) +{ + return av_chroma_location_pos_to_enum(xpos, ypos); +} +#endif + +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 (!FF_ALLOCZ_TYPED_ARRAY(frame->extended_data, nb_channels)) + 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 avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){ + return !!(ffcodec(codec)->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM); +} + +const char *avcodec_get_name(enum AVCodecID id) +{ + const AVCodecDescriptor *cd; + const 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"; +} + +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; +} + +int av_get_exact_bits_per_sample(enum AVCodecID codec_id) +{ + switch (codec_id) { + case AV_CODEC_ID_DFPWM: + return 1; + case AV_CODEC_ID_8SVX_EXP: + case AV_CODEC_ID_8SVX_FIB: + case AV_CODEC_ID_ADPCM_ARGO: + case AV_CODEC_ID_ADPCM_CT: + case AV_CODEC_ID_ADPCM_IMA_ALP: + case AV_CODEC_ID_ADPCM_IMA_AMV: + case AV_CODEC_ID_ADPCM_IMA_APC: + case AV_CODEC_ID_ADPCM_IMA_APM: + 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_IMA_SSI: + 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_SGA: + case AV_CODEC_ID_PCM_U8: + case AV_CODEC_ID_SDX2_DPCM: + case AV_CODEC_ID_CBD2_DPCM: + case AV_CODEC_ID_DERF_DPCM: + case AV_CODEC_ID_WADY_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[][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 >= FF_ARRAY_ELEMS(map)) + 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_DFPWM: + return 1; + 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: + if (framecount > INT_MAX/1024) + return 0; + 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; + case AV_CODEC_ID_FTR: return 1024; + } + + 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; + else if (id == AV_CODEC_ID_BINKAUDIO_DCT) { + if (sr / 22050 > 22) + return 0; + return (480 << (sr / 22050)); + } + + 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 (id == AV_CODEC_ID_APTX) + return 4 * (frame_bytes / 4); + if (id == AV_CODEC_ID_APTX_HD) + return 4 * (frame_bytes / 6); + + 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_FASTAUDIO: + return frame_bytes / (40 * ch) * 256; + case AV_CODEC_ID_ADPCM_IMA_MOFLEX: + return (frame_bytes - 4 * ch) / (128 * ch) * 256; + case AV_CODEC_ID_ADPCM_AFC: + return frame_bytes / (9 * ch) * 16; + case AV_CODEC_ID_ADPCM_PSX: + case AV_CODEC_ID_ADPCM_DTK: + frame_bytes /= 16 * ch; + if (frame_bytes > INT_MAX / 28) + return 0; + return frame_bytes * 28; + case AV_CODEC_ID_ADPCM_4XM: + case AV_CODEC_ID_ADPCM_IMA_ACORN: + 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; + case AV_CODEC_ID_ADPCM_THP: + case AV_CODEC_ID_ADPCM_THP_LE: + if (extradata) + return frame_bytes * 14LL / (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; + int64_t tmp = 0; + switch (id) { + case AV_CODEC_ID_ADPCM_IMA_WAV: + if (bps < 2 || bps > 5) + return 0; + tmp = blocks * (1LL + (ba - 4 * ch) / (bps * ch) * 8); + break; + case AV_CODEC_ID_ADPCM_IMA_DK3: + tmp = blocks * (((ba - 16LL) * 2 / 3 * 4) / ch); + break; + case AV_CODEC_ID_ADPCM_IMA_DK4: + tmp = blocks * (1 + (ba - 4LL * ch) * 2 / ch); + break; + case AV_CODEC_ID_ADPCM_IMA_RAD: + tmp = blocks * ((ba - 4LL * ch) * 2 / ch); + break; + case AV_CODEC_ID_ADPCM_MS: + tmp = blocks * (2 + (ba - 7LL * ch) * 2LL / ch); + break; + case AV_CODEC_ID_ADPCM_MTAF: + tmp = blocks * (ba - 16LL) * 2 / ch; + break; + case AV_CODEC_ID_ADPCM_XMD: + tmp = blocks * 32; + break; + } + if (tmp) { + if (tmp != (int)tmp) + return 0; + return tmp; + } + } + + 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) +{ + int channels = avctx->ch_layout.nb_channels; + int duration; +#if FF_API_OLD_CHANNEL_LAYOUT +FF_DISABLE_DEPRECATION_WARNINGS + if (!channels) + channels = avctx->channels; +FF_ENABLE_DEPRECATION_WARNINGS +#endif + duration = get_audio_frame_duration(avctx->codec_id, avctx->sample_rate, + channels, avctx->block_align, + avctx->codec_tag, avctx->bits_per_coded_sample, + avctx->bit_rate, avctx->extradata, avctx->frame_size, + frame_bytes); + return FFMAX(0, duration); +} + +int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes) +{ + int channels = par->ch_layout.nb_channels; + int duration; +#if FF_API_OLD_CHANNEL_LAYOUT +FF_DISABLE_DEPRECATION_WARNINGS + if (!channels) + channels = par->channels; +FF_ENABLE_DEPRECATION_WARNINGS +#endif + duration = get_audio_frame_duration(par->codec_id, par->sample_rate, + channels, par->block_align, + par->codec_tag, par->bits_per_coded_sample, + par->bit_rate, par->extradata, par->frame_size, + frame_bytes); + return FFMAX(0, duration); +} + +#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 *avcodec, int index) +{ + const FFCodec *const codec = ffcodec(avcodec); + 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; +} + +int ff_thread_ref_frame(ThreadFrame *dst, const 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_ext_buffer(dst->owner[0], dst); + return AVERROR(ENOMEM); + } + + return 0; +} + +#if !HAVE_THREADS + +int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f, int flags) +{ + return ff_get_buffer(avctx, f, flags); +} + +int ff_thread_get_ext_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, AVFrame *f) +{ + if (f) + av_frame_unref(f); +} + +void ff_thread_release_ext_buffer(AVCodecContext *avctx, ThreadFrame *f) +{ + f->owner[0] = f->owner[1] = NULL; + 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(const ThreadFrame *f, int progress, int field) +{ +} + +int ff_thread_can_start_frame(AVCodecContext *avctx) +{ + return 1; +} + +int ff_slice_thread_init_progress(AVCodecContext *avctx) +{ + return 0; +} + +int ff_slice_thread_allocz_entries(AVCodecContext *avctx, int count) +{ + return 0; +} + +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 + +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; + int i; + + for (i = 0; i < avctx->nb_coded_side_data; i++) + if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES) + return (AVCPBProperties *)avctx->coded_side_data[i].data; + + 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 unsigned bcd2uint(uint8_t bcd) +{ + unsigned low = bcd & 0xf; + unsigned high = bcd >> 4; + if (low > 9 || high > 9) + return 0; + return low + 10*high; +} + +int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len, + void **data, size_t *sei_size) +{ + AVFrameSideData *sd = NULL; + uint8_t *sei_data; + PutBitContext pb; + uint32_t *tc; + int m; + + if (frame) + sd = av_frame_get_side_data(frame, AV_FRAME_DATA_S12M_TIMECODE); + + if (!sd) { + *data = NULL; + return 0; + } + tc = (uint32_t*)sd->data; + m = tc[0] & 3; + + *sei_size = sizeof(uint32_t) * 4; + *data = av_mallocz(*sei_size + prefix_len); + if (!*data) + return AVERROR(ENOMEM); + sei_data = (uint8_t*)*data + prefix_len; + + init_put_bits(&pb, sei_data, *sei_size); + put_bits(&pb, 2, m); // num_clock_ts + + for (int j = 1; j <= m; j++) { + uint32_t tcsmpte = tc[j]; + unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours + unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes + unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds + unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames + unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit + + /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */ + if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) { + unsigned pc; + ff *= 2; + if (av_cmp_q(rate, (AVRational) {50, 1}) == 0) + pc = !!(tcsmpte & 1 << 7); + else + pc = !!(tcsmpte & 1 << 23); + ff = (ff + pc) & 0x7f; + } + + put_bits(&pb, 1, 1); // clock_timestamp_flag + put_bits(&pb, 1, 1); // units_field_based_flag + put_bits(&pb, 5, 0); // counting_type + put_bits(&pb, 1, 1); // full_timestamp_flag + put_bits(&pb, 1, 0); // discontinuity_flag + put_bits(&pb, 1, drop); + put_bits(&pb, 9, ff); + put_bits(&pb, 6, ss); + put_bits(&pb, 6, mm); + put_bits(&pb, 5, hh); + put_bits(&pb, 5, 0); + } + flush_put_bits(&pb); + + 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; +} |