[FFmpeg-cvslog] libavcodec/mmaldec.c: set AVFrame interlaced_frame and top_field_first, AVCodecContext framerate

[Jens Ziller]

ffmpeg | branch: master | Jens Ziller <zillevdr at gmx.de> | Sun Aug 14 16:44:39 2016 +0200| [bc7066fd5dcfa33264e9e846284f422224d80dd6] | committer: Michael Niedermayer

libavcodec/mmaldec.c: set AVFrame interlaced_frame and top_field_first, AVCodecContext framerate

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bc7066fd5dcfa33264e9e846284f422224d80dd6
---

 libavcodec/mmaldec.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/libavcodec/mmaldec.c b/libavcodec/mmaldec.c
index 099a8c5..56ad948 100644
--- a/libavcodec/mmaldec.c
+++ b/libavcodec/mmaldec.c
@@ -88,6 +88,8 @@ typedef struct MMALDecodeContext {
     int eos_received;
     int eos_sent;
     int extradata_sent;
+    int interlaced_frame;
+    int top_field_first;
 } MMALDecodeContext;
 
 // Assume decoder is guaranteed to produce output after at least this many
@@ -274,6 +276,7 @@ static int ffmal_update_format(AVCodecContext *avctx)
     int ret = 0;
     MMAL_COMPONENT_T *decoder = ctx->decoder;
     MMAL_ES_FORMAT_T *format_out = decoder->output[0]->format;
+    MMAL_PARAMETER_VIDEO_INTERLACE_TYPE_T interlace_type;
 
     ffmmal_poolref_unref(ctx->pool_out);
     if (!(ctx->pool_out = av_mallocz(sizeof(*ctx->pool_out)))) {
@@ -300,6 +303,16 @@ static int ffmal_update_format(AVCodecContext *avctx)
     if ((status = mmal_port_format_commit(decoder->output[0])))
         goto fail;
 
+    interlace_type.hdr.id = MMAL_PARAMETER_VIDEO_INTERLACE_TYPE;
+    interlace_type.hdr.size = sizeof(MMAL_PARAMETER_VIDEO_INTERLACE_TYPE_T);
+    status = mmal_port_parameter_get(decoder->output[0], &interlace_type.hdr);
+    if (status != MMAL_SUCCESS) {
+        av_log(avctx, AV_LOG_ERROR, "Cannot read MMAL interlace information!\n");
+    } else {
+        ctx->interlaced_frame = (interlace_type.eMode != MMAL_InterlaceProgressive);
+        ctx->top_field_first = (interlace_type.eMode == MMAL_InterlaceFieldsInterleavedUpperFirst);
+    }
+
     if ((ret = ff_set_dimensions(avctx, format_out->es->video.crop.x + format_out->es->video.crop.width,
                                         format_out->es->video.crop.y + format_out->es->video.crop.height)) < 0)
         goto fail;
@@ -308,6 +321,10 @@ static int ffmal_update_format(AVCodecContext *avctx)
         avctx->sample_aspect_ratio.num = format_out->es->video.par.num;
         avctx->sample_aspect_ratio.den = format_out->es->video.par.den;
     }
+    if (format_out->es->video.frame_rate.num && format_out->es->video.frame_rate.den) {
+        avctx->framerate.num = format_out->es->video.frame_rate.num;
+        avctx->framerate.den = format_out->es->video.frame_rate.den;
+    }
 
     avctx->colorspace = ffmmal_csp_to_av_csp(format_out->es->video.color_space);
 
@@ -609,6 +626,9 @@ static int ffmal_copy_frame(AVCodecContext *avctx,  AVFrame *frame,
     MMALDecodeContext *ctx = avctx->priv_data;
     int ret = 0;
 
+    frame->interlaced_frame = ctx->interlaced_frame;
+    frame->top_field_first = ctx->top_field_first;
+
     if (avctx->pix_fmt == AV_PIX_FMT_MMAL) {
         if (!ctx->pool_out)
             return AVERROR_UNKNOWN; // format change code failed with OOM previously