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Code Issues Releases Activity

avformat/segafilmenc: Combine several checks

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by moving them around.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Andreas Rheinhardt 2020-01-14 04:13:35 +01:00 committed by Michael Niedermayer
parent ba2581adb2
commit ab44f0aee8
1 changed files with 9 additions and 17 deletions
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26
libavformat/segafilmenc.c
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@ -155,7 +155,6 @@ static int get_audio_codec_id(enum AVCodecID codec_id)
static int film_init(AVFormatContext *format_context)
{
AVStream *audio = NULL;
FILMOutputContext *film = format_context->priv_data;
film->audio_index = -1;
film->video_index = -1;
@ -171,8 +170,12 @@ static int film_init(AVFormatContext *format_context)
av_log(format_context, AV_LOG_ERROR, "Sega FILM allows a maximum of one audio stream.\n");
return AVERROR(EINVAL);
}
if (get_audio_codec_id(st->codecpar->codec_id) < 0) {
av_log(format_context, AV_LOG_ERROR,
"Incompatible audio stream format.\n");
return AVERROR(EINVAL);
}
film->audio_index = i;
audio = st;
}
if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
@ -200,11 +203,6 @@ static int film_init(AVFormatContext *format_context)
return AVERROR(EINVAL);
}
if (audio != NULL && get_audio_codec_id(audio->codecpar->codec_id) < 0) {
av_log(format_context, AV_LOG_ERROR, "Incompatible audio stream format.\n");
return AVERROR(EINVAL);
}
return 0;
}
@ -269,11 +267,9 @@ static int film_write_header(AVFormatContext *format_context)
{
int ret = 0;
int64_t sample_table_size, stabsize, headersize;
int8_t audio_codec;
AVIOContext *pb = format_context->pb;
FILMOutputContext *film = format_context->priv_data;
FILMPacket *prev, *packet;
AVStream *audio = NULL;
AVStream *video = NULL;
/* Calculate how much we need to reserve for the header;
@ -290,13 +286,6 @@ static int film_write_header(AVFormatContext *format_context)
/* Seek back to the beginning to start writing the header now */
avio_seek(pb, 0, SEEK_SET);
if (film->audio_index > -1)
audio = format_context->streams[film->audio_index];
if (audio != NULL) {
audio_codec = get_audio_codec_id(audio->codecpar->codec_id);
}
/* First, write the FILM header; this is very simple */
ffio_wfourcc(pb, "FILM");
@ -327,7 +316,10 @@ static int film_write_header(AVFormatContext *format_context)
avio_wb32(pb, video->codecpar->width);
avio_w8(pb, 24); /* Bits per pixel - observed to always be 24 */
if (audio != NULL) {
if (film->audio_index > -1) {
AVStream *audio = format_context->streams[film->audio_index];
int audio_codec = get_audio_codec_id(audio->codecpar->codec_id);
avio_w8(pb, audio->codecpar->channels); /* Audio channels */
avio_w8(pb, audio->codecpar->bits_per_coded_sample); /* Audio bit depth */
avio_w8(pb, audio_codec); /* Compression - 0 is PCM, 2 is ADX */