[FFmpeg-devel] [PATCH 6/7] avformat/segafilmenc: Combine several checks

[Andreas Rheinhardt]

Andreas Rheinhardt:
> by moving them around.
> 
> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
> ---
>  libavformat/segafilmenc.c | 26 +++++++++-----------------
>  1 file changed, 9 insertions(+), 17 deletions(-)
> 
> diff --git a/libavformat/segafilmenc.c b/libavformat/segafilmenc.c
> index 4f881f4f2f..137f153331 100644
> --- a/libavformat/segafilmenc.c
> +++ b/libavformat/segafilmenc.c
> @@ -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 */
> 
Ping for the last two unmerged patches of this patchset.

- Andreas