ret = avcodec_send_frame(avctx, frame);
if( !ret && frame ) return pkts;
if( ret < 0 && ret != AVERROR(EAGAIN) ) break;
+ if ( ret == AVERROR(EAGAIN) && !frame ) continue;
FFPacket opkt;
ret = avcodec_receive_packet(avctx, opkt);
if( !frame && ret == AVERROR_EOF ) return pkts;
return 1;
}
+int FFVideoStream::probe(int64_t pos)
+{
+ int ret = video_seek(pos);
+ if( ret < 0 ) return -1;
+ if( !frame && !(frame=av_frame_alloc()) ) {
+ fprintf(stderr, "FFVideoStream::probe: av_frame_alloc failed\n");
+ return -1;
+ }
+
+ if (ffmpeg->interlace_from_codec) return 1;
+
+ ret = read_frame(frame);
+ if( ret > 0 ) {
+ //printf("codec interlace: %i \n",frame->interlaced_frame);
+ //printf("codec tff: %i \n",frame->top_field_first);
+
+ if (!frame->interlaced_frame)
+ ffmpeg->interlace_from_codec = AV_FIELD_PROGRESSIVE;
+ if ((frame->interlaced_frame) && (frame->top_field_first))
+ ffmpeg->interlace_from_codec = AV_FIELD_TT;
+ if ((frame->interlaced_frame) && (!frame->top_field_first))
+ ffmpeg->interlace_from_codec = AV_FIELD_BB;
+ //printf("Interlace mode from codec: %i\n", ffmpeg->interlace_from_codec);
+
+ }
+
+ if( frame->format == AV_PIX_FMT_NONE || frame->width <= 0 || frame->height <= 0 )
+ ret = -1;
+
+ ret = ret > 0 ? 1 : ret < 0 ? -1 : 0;
+ return ret;
+}
+
int FFVideoStream::load(VFrame *vframe, int64_t pos)
{
int ret = video_seek(pos);
fprintf(stderr, "FFVideoStream::load: av_frame_alloc failed\n");
return -1;
}
+
+
int i = MAX_RETRY + pos - curr_pos;
int64_t cache_start = 0;
while( ret>=0 && !flushed && curr_pos<=pos && --i>=0 ) {
int FFVideoStream::drain()
{
+
return 0;
}
}
int color_space = SWS_CS_ITU601;
switch( preferences->yuv_color_space ) {
- case BC_COLORS_BT601: color_space = SWS_CS_ITU601; break;
+ case BC_COLORS_BT601_PAL: color_space = SWS_CS_ITU601; break;
+ case BC_COLORS_BT601_NTSC: color_space = SWS_CS_SMPTE170M; break;
case BC_COLORS_BT709: color_space = SWS_CS_ITU709; break;
- case BC_COLORS_BT2020: color_space = SWS_CS_BT2020; break;
+ case BC_COLORS_BT2020_NCL:
+ case BC_COLORS_BT2020_CL: color_space = SWS_CS_BT2020; break;
}
const int *color_table = sws_getCoefficients(color_space);
}
int color_space = SWS_CS_ITU601;
switch( preferences->yuv_color_space ) {
- case BC_COLORS_BT601: color_space = SWS_CS_ITU601; break;
+ case BC_COLORS_BT601_PAL: color_space = SWS_CS_ITU601; break;
+ case BC_COLORS_BT601_NTSC: color_space = SWS_CS_SMPTE170M; break;
case BC_COLORS_BT709: color_space = SWS_CS_ITU709; break;
- case BC_COLORS_BT2020: color_space = SWS_CS_BT2020; break;
+ case BC_COLORS_BT2020_NCL:
+ case BC_COLORS_BT2020_CL: color_space = SWS_CS_BT2020; break;
}
const int *color_table = sws_getCoefficients(color_space);
flow = 1;
decoding = encoding = 0;
has_audio = has_video = 0;
+ interlace_from_codec = 0;
opts = 0;
opt_duration = -1;
opt_video_filter = 0;
return 0;
}
+// check_frame_rate and std_frame_rate needed for 23.976
+// and 59.94 fps mpeg2
static inline AVRational std_frame_rate(int i)
{
static const int m1 = 1001*12, m2 = 1000*12;
static const int freqs[] = {
40*m1, 48*m1, 50*m1, 60*m1, 80*m1,120*m1, 240*m1,
- 24*m2, 30*m2, 60*m2, 12*m2, 15*m2, 48*m2, 0,
+ 24*m2, 30*m2, 60*m2, 12*m2, 15*m2, 48*m2, 90*m2,
+ 100*m2, 120*m2, 144*m2, 72*m2, 0,
};
int freq = i<30*12 ? (i+1)*1001 : freqs[i-30*12];
return (AVRational) { freq, 1001*12 };
AVPixelFormat pix_fmt = (AVPixelFormat)st->codecpar->format;
const char *pfn = av_get_pix_fmt_name(pix_fmt);
report(" pix %s\n", pfn ? pfn : unkn);
+ int interlace = st->codecpar->field_order;
+ report(" interlace (container level): %i\n", interlace ? interlace : -1);
+ int interlace_codec = interlace_from_codec;
+ report(" interlace (codec level): %i\n", interlace_codec ? interlace_codec : -1);
enum AVColorSpace space = st->codecpar->color_space;
const char *nm = av_color_space_name(space);
report(" color space:%s", nm ? nm : unkn);
}
switch( avpar->color_space ) {
case AVCOL_SPC_BT470BG:
+ vid->color_space = BC_COLORS_BT601_PAL;
+ break;
case AVCOL_SPC_SMPTE170M:
- vid->color_space = BC_COLORS_BT601;
+ vid->color_space = BC_COLORS_BT601_NTSC;
break;
case AVCOL_SPC_BT709:
vid->color_space = BC_COLORS_BT709;
break;
case AVCOL_SPC_BT2020_NCL:
+ vid->color_space = BC_COLORS_BT2020_NCL;
+ break;
case AVCOL_SPC_BT2020_CL:
- vid->color_space = BC_COLORS_BT2020;
+ vid->color_space = BC_COLORS_BT2020_CL;
break;
default:
- vid->color_space = !file_base ? BC_COLORS_BT601 :
+ vid->color_space = !file_base ? BC_COLORS_BT601_NTSC :
file_base->file->preferences->yuv_color_space;
break;
}
if( (vid->color_space = asset->ff_color_space) < 0 )
vid->color_space = file_base->file->preferences->yuv_color_space;
switch( vid->color_space ) {
- case BC_COLORS_BT601: ctx->colorspace = AVCOL_SPC_SMPTE170M; break;
+ case BC_COLORS_BT601_NTSC: ctx->colorspace = AVCOL_SPC_SMPTE170M; break;
+ case BC_COLORS_BT601_PAL: ctx->colorspace = AVCOL_SPC_BT470BG; break;
case BC_COLORS_BT709: ctx->colorspace = AVCOL_SPC_BT709; break;
- case BC_COLORS_BT2020: ctx->colorspace = AVCOL_SPC_BT2020_NCL; break;
+ case BC_COLORS_BT2020_NCL: ctx->colorspace = AVCOL_SPC_BT2020_NCL; break;
+ case BC_COLORS_BT2020_CL: ctx->colorspace = AVCOL_SPC_BT2020_CL; break;
}
AVPixelFormat pix_fmt = av_get_pix_fmt(asset->ff_pixel_format);
if( opt_hw_dev != 0 ) {
int mask_h = (1<<desc->log2_chroma_h)-1;
ctx->height = (vid->height+mask_h) & ~mask_h;
ctx->sample_aspect_ratio = to_sample_aspect_ratio(asset);
- AVRational frame_rate = check_frame_rate(codec->supported_framerates, vid->frame_rate);
+ AVRational frame_rate;
+ if (ctx->codec->id == AV_CODEC_ID_MPEG1VIDEO ||
+ ctx->codec->id == AV_CODEC_ID_MPEG2VIDEO)
+ frame_rate = check_frame_rate(codec->supported_framerates, vid->frame_rate);
+ else
+ frame_rate = av_d2q(vid->frame_rate, INT_MAX);
if( !frame_rate.num || !frame_rate.den ) {
eprintf(_("check_frame_rate failed %s\n"), filename);
ret = 1;
vid->interlaced = asset->interlace_mode == ILACE_MODE_TOP_FIRST ||
asset->interlace_mode == ILACE_MODE_BOTTOM_FIRST ? 1 : 0;
vid->top_field_first = asset->interlace_mode == ILACE_MODE_TOP_FIRST ? 1 : 0;
+ switch (asset->interlace_mode) {
+ case ILACE_MODE_TOP_FIRST:
+ if (ctx->codec->id == AV_CODEC_ID_MJPEG)
+ av_dict_set(&sopts, "field_order", "tt", 0);
+ else
+ av_dict_set(&sopts, "field_order", "tb", 0);
+ if (ctx->codec_id != AV_CODEC_ID_MJPEG)
+ av_dict_set(&sopts, "flags", "+ilme+ildct", 0);
+ break;
+ case ILACE_MODE_BOTTOM_FIRST:
+ if (ctx->codec->id == AV_CODEC_ID_MJPEG)
+ av_dict_set(&sopts, "field_order", "bb", 0);
+ else
+ av_dict_set(&sopts, "field_order", "bt", 0);
+ if (ctx->codec_id != AV_CODEC_ID_MJPEG)
+ av_dict_set(&sopts, "flags", "+ilme+ildct", 0);
+ break;
+ case ILACE_MODE_NOTINTERLACED: av_dict_set(&sopts, "field_order", "progressive", 0); break;
+ }
break; }
default:
eprintf(_("not audio/video, %s:%s\n"), codec_name, filename);
return 0;
}
+int FFMPEG::video_probe(int64_t pos)
+{
+ int vidx = vstrm_index[0].st_idx;
+ FFVideoStream *vid = ffvideo[vidx];
+ vid->probe(pos);
+
+ int interlace1 = interlace_from_codec;
+ //printf("interlace from codec: %i\n", interlace1);
+
+ switch (interlace1)
+ {
+ case AV_FIELD_TT:
+ case AV_FIELD_TB:
+ return ILACE_MODE_TOP_FIRST;
+ case AV_FIELD_BB:
+ case AV_FIELD_BT:
+ return ILACE_MODE_BOTTOM_FIRST;
+ case AV_FIELD_PROGRESSIVE:
+ return ILACE_MODE_NOTINTERLACED;
+ default:
+ return ILACE_MODE_UNDETECTED;
+ }
+
+}
+
+
+
int FFMPEG::video_seek(int stream, int64_t pos)
{
int vidx = vstrm_index[stream].st_idx;
float FFMPEG::ff_aspect_ratio(int stream)
{
- return ffvideo[stream]->aspect_ratio;
+ //return ffvideo[stream]->aspect_ratio;
+ AVFormatContext *fmt_ctx = ffvideo[stream]->fmt_ctx;
+ AVStream *strm = ffvideo[stream]->st;
+ AVCodecParameters *par = ffvideo[stream]->st->codecpar;
+ AVRational dar;
+ AVRational sar = av_guess_sample_aspect_ratio(fmt_ctx, strm, NULL);
+ if (sar.num) {
+ av_reduce(&dar.num, &dar.den,
+ par->width * sar.num,
+ par->height * sar.den,
+ 1024*1024);
+ return av_q2d(dar);
+ }
+ return ffvideo[stream]->aspect_ratio;
}
const char* FFMPEG::ff_video_codec(int stream)
return ffvideo[stream]->st->codecpar->color_range == AVCOL_RANGE_MPEG ? 1 : 0;
}
+int FFMPEG::ff_interlace(int stream)
+{
+// https://ffmpeg.org/doxygen/trunk/structAVCodecParserContext.html
+/* reads from demuxer because codec frame not ready */
+ int interlace0 = ffvideo[stream]->st->codecpar->field_order;
+
+ switch (interlace0)
+ {
+ case AV_FIELD_TT:
+ case AV_FIELD_TB:
+ return ILACE_MODE_TOP_FIRST;
+ case AV_FIELD_BB:
+ case AV_FIELD_BT:
+ return ILACE_MODE_BOTTOM_FIRST;
+ case AV_FIELD_PROGRESSIVE:
+ return ILACE_MODE_NOTINTERLACED;
+ default:
+ return ILACE_MODE_UNDETECTED;
+ }
+
+}
+
+
+
int FFMPEG::ff_cpus()
{
return !file_base ? 1 : file_base->file->cpus;