From b17e56216c02ff550dd1a90a1fde978e1b14bfaa Mon Sep 17 00:00:00 2001 From: "Ronald S. Bultje" Date: Sat, 7 Jun 2003 20:45:13 +0000 Subject: [PATCH] Make some more use of the ffmpeg utils.c functions for buffer allocation (really handy) Original commit message from CVS: Make some more use of the ffmpeg utils.c functions for buffer allocation (really handy) --- ext/ffmpeg/gstffmpegdec.c | 121 +++++++++++----------------------------------- 1 file changed, 28 insertions(+), 93 deletions(-) diff --git a/ext/ffmpeg/gstffmpegdec.c b/ext/ffmpeg/gstffmpegdec.c index 351dba3..351d37c 100644 --- a/ext/ffmpeg/gstffmpegdec.c +++ b/ext/ffmpeg/gstffmpegdec.c @@ -189,25 +189,9 @@ gst_ffmpegdec_connect (GstPad *pad, ffmpegdec->context->get_buffer = gst_ffmpegdec_get_buffer; ffmpegdec->context->release_buffer = gst_ffmpegdec_release_buffer; - switch (oclass->in_plugin->type) { - case CODEC_TYPE_VIDEO: - /* get size */ - if (gst_caps_has_property_typed (caps, "width", GST_PROPS_INT_TYPE)) - gst_caps_get_int (caps, "width", &ffmpegdec->context->width); - if (gst_caps_has_property_typed (caps, "height", GST_PROPS_INT_TYPE)) - gst_caps_get_int (caps, "height", &ffmpegdec->context->height); - break; - - case CODEC_TYPE_AUDIO: - /* FIXME: does ffmpeg want us to set the sample format - * and the rate+channels here? Or does it provide them - * itself? */ - break; - - default: - /* Unsupported */ - return GST_PAD_LINK_REFUSED; - } + /* get size and so */ + gst_ffmpeg_caps_to_codectype (oclass->in_plugin->type, + caps, ffmpegdec->context); /* we dont send complete frames */ if (oclass->in_plugin->capabilities & CODEC_CAP_TRUNCATED) @@ -232,90 +216,30 @@ gst_ffmpegdec_connect (GstPad *pad, return GST_PAD_LINK_OK; } -/* innocent hacks */ -#define ALIGN(x) (((x)+alignment)&~alignment) - static int gst_ffmpegdec_get_buffer (AVCodecContext *context, AVFrame *picture) { GstBuffer *buf = NULL; - gint hor_chr_dec = -1, ver_chr_dec = -1; - gint width, height; - gint alignment; gulong bufsize = 0; - /* set alignment */ - if (context->codec_id == CODEC_ID_SVQ1) { - alignment = 63; - } else { - alignment = 15; - } - - /* set start size */ - width = ALIGN (context->width); - height = ALIGN (context->height); - switch (context->codec_type) { case CODEC_TYPE_VIDEO: bufsize = avpicture_get_size (context->pix_fmt, - width, height); - - /* find out whether we are planar or packed */ - switch (context->pix_fmt) { - case PIX_FMT_YUV420P: - case PIX_FMT_YUV422P: - case PIX_FMT_YUV444P: - case PIX_FMT_YUV410P: - case PIX_FMT_YUV411P: - avcodec_get_chroma_sub_sample (context->pix_fmt, - &hor_chr_dec, &ver_chr_dec); - break; - case PIX_FMT_YUV422: - case PIX_FMT_RGB24: - case PIX_FMT_BGR24: - case PIX_FMT_RGBA32: - case PIX_FMT_RGB565: - case PIX_FMT_RGB555: - /* not planar */ - break; - default: - g_assert (0); - break; - } + context->width, + context->height); + buf = gst_buffer_new_and_alloc (bufsize); + avpicture_fill ((AVPicture *) picture, GST_BUFFER_DATA (buf), + context->pix_fmt, + context->width, context->height); break; case CODEC_TYPE_AUDIO: - bufsize = AVCODEC_MAX_AUDIO_FRAME_SIZE; - break; - default: g_assert (0); break; } - /* create buffer */ - buf = gst_buffer_new_and_alloc (bufsize); - - /* set up planes */ - picture->data[0] = GST_BUFFER_DATA (buf); - if (hor_chr_dec >= 0 && ver_chr_dec >= 0) { - picture->linesize[0] = width; - picture->linesize[1] = width >> hor_chr_dec; - picture->linesize[2] = width >> hor_chr_dec; - - picture->data[1] = picture->data[0] + (width * height); - picture->data[2] = picture->data[1] + - ((width * height) >> (ver_chr_dec + hor_chr_dec)); - } else { - picture->linesize[0] = GST_BUFFER_MAXSIZE (buf) / height; - picture->linesize[1] = picture->linesize[2] = 0; - - picture->data[1] = picture->data[2] = NULL; - } - picture->linesize[3] = 0; - picture->data[3] = NULL; - /* tell ffmpeg we own this buffer * * we also use an evil hack (keep buffer in base[0]) @@ -343,14 +267,13 @@ gst_ffmpegdec_release_buffer (AVCodecContext *context, picture->data[i] = NULL; picture->linesize[i] = 0; } - picture->base[0] = NULL; } static void gst_ffmpegdec_chain (GstPad *pad, GstBuffer *inbuf) { - GstBuffer *outbuf; + GstBuffer *outbuf = NULL; GstFFMpegDec *ffmpegdec = (GstFFMpegDec *)(gst_pad_get_parent (pad)); GstFFMpegDecClass *oclass = (GstFFMpegDecClass*)(G_OBJECT_GET_CLASS (ffmpegdec)); guchar *data; @@ -374,12 +297,28 @@ gst_ffmpegdec_chain (GstPad *pad, ffmpegdec->picture, &have_data, data, size); + if (have_data) { + outbuf = GST_BUFFER (ffmpegdec->picture->base[0]); + GST_BUFFER_SIZE (outbuf) = GST_BUFFER_MAXSIZE (outbuf); + /* this isn't necessarily true, but it's better than nothing */ + GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (inbuf); + } break; + case CODEC_TYPE_AUDIO: + outbuf = gst_buffer_new_and_alloc (AVCODEC_MAX_AUDIO_FRAME_SIZE); len = avcodec_decode_audio (ffmpegdec->context, - (int16_t *) ffmpegdec->picture->data[0], + (int16_t *) GST_BUFFER_DATA (outbuf), &have_data, data, size); + if (have_data) { + GST_BUFFER_SIZE (outbuf) = have_data; + GST_BUFFER_DURATION (outbuf) = (have_data * GST_SECOND) / + (ffmpegdec->context->channels * + ffmpegdec->context->sample_rate); + } else { + gst_buffer_unref (outbuf); + } break; default: g_assert(0); @@ -406,12 +345,8 @@ gst_ffmpegdec_chain (GstPad *pad, } } - outbuf = GST_BUFFER (ffmpegdec->picture->base[0]); GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (inbuf); - if (oclass->in_plugin->type == CODEC_TYPE_AUDIO) - GST_BUFFER_SIZE (outbuf) = have_data; - else - GST_BUFFER_SIZE (outbuf) = GST_BUFFER_MAXSIZE (outbuf); + gst_pad_push (ffmpegdec->srcpad, outbuf); } -- 2.7.4