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subtitle codec type support

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Originally committed as revision 4346 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard
2005-06-03 13:59:38 +00:00
parent c62112ff06
commit 240c1657dc
6 changed files with 933 additions and 3 deletions
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30
libavcodec/utils.c
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@@ -590,6 +590,15 @@ int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
return 0;
}
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
const AVSubtitle *sub)
{
int ret;
ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
avctx->frame_number++;
return ret;
}
/**
* decode a frame.
* @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
@@ -639,6 +648,23 @@ int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
return ret;
}
/* decode a subtitle message. return -1 if error, otherwise return the
*number of bytes used. If no subtitle could be decompressed,
*got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
int *got_sub_ptr,
const uint8_t *buf, int buf_size)
{
int ret;
*got_sub_ptr = 0;
ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
(uint8_t *)buf, buf_size);
if (*got_sub_ptr)
avctx->frame_number++;
return ret;
}
int avcodec_close(AVCodecContext *avctx)
{
if (avctx->codec->close)
@@ -808,6 +834,10 @@ void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
snprintf(buf, buf_size, "Data: %s", codec_name);
bitrate = enc->bit_rate;
break;
case CODEC_TYPE_SUBTITLE:
snprintf(buf, buf_size, "Subtitle: %s", codec_name);
bitrate = enc->bit_rate;
break;
default:
snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
return;