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https://github.com/FFmpeg/FFmpeg.git
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simplify AVFormatParameters NULL checks
Originally committed as revision 5146 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -217,7 +217,7 @@ static int audio_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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AVStream *st;
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int ret;
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if (!ap || ap->sample_rate <= 0 || ap->channels <= 0)
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if (ap->sample_rate <= 0 || ap->channels <= 0)
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return -1;
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st = av_new_stream(s1, 0);
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@ -68,7 +68,7 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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const char *video_device;
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int j;
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if (!ap || ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0)
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if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0)
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return -1;
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width = ap->width;
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@ -245,7 +245,7 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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int format = -1;
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const char *video_device;
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if (!ap || ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0)
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if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0)
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return -1;
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width = ap->width;
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@ -120,7 +120,7 @@ static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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return -ENOMEM;
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}
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if (ap && ap->image_format)
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if (ap->image_format)
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s->img_fmt = ap->image_format;
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pstrcpy(s->path, sizeof(s->path), s1->filename);
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@ -133,7 +133,7 @@ static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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else
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s->is_pipe = 1;
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if (!ap || !ap->time_base.num) {
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if (!ap->time_base.num) {
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st->codec->time_base= (AVRational){1,25};
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} else {
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st->codec->time_base= ap->time_base;
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@ -255,7 +255,7 @@ static int img_set_parameters(AVFormatContext *s, AVFormatParameters *ap)
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int i;
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/* find output image format */
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if (ap && ap->image_format) {
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if (ap->image_format) {
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img_fmt = ap->image_format;
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} else {
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img_fmt = guess_image_format(s->filename);
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@ -187,13 +187,13 @@ static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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st->need_parsing= 1;
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}
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if (!ap || !ap->time_base.num) {
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if (!ap->time_base.num) {
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av_set_pts_info(st, 60, 1, 25);
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} else {
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av_set_pts_info(st, 60, ap->time_base.num, ap->time_base.den);
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}
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if(ap && ap->width && ap->height){
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if(ap->width && ap->height){
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st->codec->width = ap->width;
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st->codec->height= ap->height;
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}
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@ -48,7 +48,7 @@ static int raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
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st = av_new_stream(s, 0);
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if (!st)
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return AVERROR_NOMEM;
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if (ap) {
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id = s->iformat->value;
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if (id == CODEC_ID_RAWVIDEO) {
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st->codec->codec_type = CODEC_TYPE_VIDEO;
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@ -74,9 +74,6 @@ static int raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
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default:
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return -1;
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}
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} else {
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return -1;
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}
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return 0;
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}
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@ -289,7 +286,7 @@ static int video_read_header(AVFormatContext *s,
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/* for mjpeg, specify frame rate */
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/* for mpeg4 specify it too (most mpeg4 streams dont have the fixed_vop_rate set ...)*/
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if (ap && ap->time_base.num) {
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if (ap->time_base.num) {
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av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
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} else if ( st->codec->codec_id == CODEC_ID_MJPEG ||
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st->codec->codec_id == CODEC_ID_MPEG4 ||
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@ -994,7 +994,7 @@ static int rtsp_read_header(AVFormatContext *s,
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rt->state = RTSP_STATE_IDLE;
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rt->seek_timestamp = 0; /* default is to start stream at position
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zero */
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if (ap && ap->initial_pause) {
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if (ap->initial_pause) {
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/* do not start immediately */
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} else {
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if (rtsp_read_play(s) < 0) {
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@ -465,6 +465,12 @@ int av_open_input_stream(AVFormatContext **ic_ptr,
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{
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int err;
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AVFormatContext *ic;
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AVFormatParameters default_ap;
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if(!ap){
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ap=&default_ap;
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memset(ap, 0, sizeof(default_ap));
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}
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ic = av_alloc_format_context();
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if (!ic) {
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@ -384,7 +384,7 @@ static int v4l2_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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uint32_t desired_format, capabilities;
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const char *video_device;
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if (!ap || ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
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if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
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av_log(s1, AV_LOG_ERROR, "Missing/Wrong parameters\n");
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return -1;
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