generic-library/ffmpeg
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fixed top_field_first support when encoding

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Originally committed as revision 2600 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2003-12-12 16:56:38 +00:00
parent 3e9d718ecb
commit 7a0f9d7e7d
3 changed files with 39 additions and 33 deletions
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60
ffmpeg.c
View File

@ -465,7 +465,7 @@ static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void
static void do_video_out(AVFormatContext *s, static void do_video_out(AVFormatContext *s,
AVOutputStream *ost, AVOutputStream *ost,
AVInputStream *ist, AVInputStream *ist,
AVPicture *in_picture, AVFrame *in_picture,
int *frame_size, AVOutputStream *audio_sync) int *frame_size, AVOutputStream *audio_sync)
{ {
int nb_frames, i, ret; int nb_frames, i, ret;
@ -557,13 +557,13 @@ static void do_video_out(AVFormatContext *s,
avpicture_fill(formatted_picture, buf, target_pixfmt, dec->width, dec->height); avpicture_fill(formatted_picture, buf, target_pixfmt, dec->width, dec->height);
if (img_convert(formatted_picture, target_pixfmt, if (img_convert(formatted_picture, target_pixfmt,
in_picture, dec->pix_fmt, (AVPicture *)in_picture, dec->pix_fmt,
dec->width, dec->height) < 0) { dec->width, dec->height) < 0) {
fprintf(stderr, "pixel format conversion not handled\n"); fprintf(stderr, "pixel format conversion not handled\n");
goto the_end; goto the_end;
} }
} else { } else {
formatted_picture = in_picture; formatted_picture = (AVPicture *)in_picture;
} }
/* XXX: resampling could be done before raw format convertion in /* XXX: resampling could be done before raw format convertion in
@ -627,6 +627,10 @@ static void do_video_out(AVFormatContext *s,
memset(&big_picture, 0, sizeof(AVFrame)); memset(&big_picture, 0, sizeof(AVFrame));
*(AVPicture*)&big_picture= *final_picture; *(AVPicture*)&big_picture= *final_picture;
/* better than nothing: use input picture interlaced
settings */
big_picture.interlaced_frame = in_picture->interlaced_frame;
big_picture.top_field_first = in_picture->top_field_first;
/* handles sameq here. This is not correct because it may /* handles sameq here. This is not correct because it may
not be a global option */ not be a global option */
@ -1187,7 +1191,7 @@ static int av_encode(AVFormatContext **output_files,
int len; int len;
uint8_t *data_buf; uint8_t *data_buf;
int data_size, got_picture; int data_size, got_picture;
AVPicture picture; AVFrame picture;
short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2]; short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
void *buffer_to_free; void *buffer_to_free;
double pts_min; double pts_min;
@ -1285,32 +1289,27 @@ static int av_encode(AVFormatContext **output_files,
(2 * ist->st->codec.channels); (2 * ist->st->codec.channels);
break; break;
case CODEC_TYPE_VIDEO: case CODEC_TYPE_VIDEO:
{ data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
AVFrame big_picture; ret = avcodec_decode_video(&ist->st->codec,
&picture, &got_picture, ptr, len);
data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2; ist->st->quality= picture.quality;
ret = avcodec_decode_video(&ist->st->codec, if (ret < 0) {
&big_picture, &got_picture, ptr, len); fail_decode:
picture= *(AVPicture*)&big_picture; fprintf(stderr, "Error while decoding stream #%d.%d\n",
ist->st->quality= big_picture.quality; ist->file_index, ist->index);
if (ret < 0) { av_free_packet(&pkt);
fail_decode: goto redo;
fprintf(stderr, "Error while decoding stream #%d.%d\n",
ist->file_index, ist->index);
av_free_packet(&pkt);
goto redo;
}
if (!got_picture) {
/* no picture yet */
goto discard_packet;
}
if (ist->st->codec.frame_rate_base != 0) {
ist->next_pts += ((int64_t)AV_TIME_BASE *
ist->st->codec.frame_rate_base) /
ist->st->codec.frame_rate;
}
len = 0;
} }
if (!got_picture) {
/* no picture yet */
goto discard_packet;
}
if (ist->st->codec.frame_rate_base != 0) {
ist->next_pts += ((int64_t)AV_TIME_BASE *
ist->st->codec.frame_rate_base) /
ist->st->codec.frame_rate;
}
len = 0;
break; break;
default: default:
goto fail_decode; goto fail_decode;
@ -1324,7 +1323,8 @@ static int av_encode(AVFormatContext **output_files,
buffer_to_free = NULL; buffer_to_free = NULL;
if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) { if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) {
pre_process_video_frame(ist, &picture, &buffer_to_free); pre_process_video_frame(ist, (AVPicture *)&picture,
&buffer_to_free);
} }
/* frame rate emulation */ /* frame rate emulation */

6
libavcodec/mpeg12.c
View File

@ -448,7 +448,11 @@ void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
} }
put_bits(&s->pb, 2, s->intra_dc_precision); put_bits(&s->pb, 2, s->intra_dc_precision);
put_bits(&s->pb, 2, s->picture_structure= PICT_FRAME); put_bits(&s->pb, 2, s->picture_structure= PICT_FRAME);
put_bits(&s->pb, 1, s->top_field_first); if (s->progressive_sequence) {
put_bits(&s->pb, 1, 0); /* no repeat */
} else {
put_bits(&s->pb, 1, s->current_picture_ptr->top_field_first);
}
/* XXX: optimize the generation of this flag with entropy /* XXX: optimize the generation of this flag with entropy
measures */ measures */
s->frame_pred_frame_dct = s->progressive_sequence; s->frame_pred_frame_dct = s->progressive_sequence;

2
libavcodec/mpegvideo.c
View File

@ -1560,6 +1560,8 @@ static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
pic->quality= pic_arg->quality; pic->quality= pic_arg->quality;
pic->pict_type= pic_arg->pict_type; pic->pict_type= pic_arg->pict_type;
pic->pts = pic_arg->pts; pic->pts = pic_arg->pts;
pic->interlaced_frame = pic_arg->interlaced_frame;
pic->top_field_first = pic_arg->top_field_first;
if(s->input_picture[encoding_delay]) if(s->input_picture[encoding_delay])
pic->display_picture_number= s->input_picture[encoding_delay]->display_picture_number + 1; pic->display_picture_number= s->input_picture[encoding_delay]->display_picture_number + 1;