[FFmpeg-devel] ffserver jpg output
Michael Niedermayer
michaelni at gmx.at
Sat May 2 01:48:51 CEST 2015
On Fri, May 01, 2015 at 05:13:11PM -0600, ill wrote:
> The patch that caligula sent works. I tested it on the git from
> yesterday and firefox is now able to read the jpg ffserver output
> properly with that applied.
> The only difference is that I added an enter on line 26 because it
> was two lines into one. Can it be committed now?
>
>
>
> diff -Nrup ffmpeg-2.6.1--orig/ffserver.c ffmpeg-2.6.1/ffserver.c
> --- ffmpeg-2.6.1--orig/ffserver.c 2015-03-16 20:25:48.000000000 +0100
> +++ ffmpeg-2.6.1/ffserver.c 2015-04-05 02:33:53.000000000 +0200
> @@ -967,6 +967,10 @@ static int handle_connection(HTTPContext
> /* close connection if trailer sent */
> if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
> return -1;
> + /* Check if it is a single jpeg frame 123 */
> + if (c->stream->single_frame && c->data_count >
> c->cur_frame_bytes && c->cur_frame_bytes > 0) {
> + close_connection(c);
this patch is corrupted
> + }
> break;
> case HTTPSTATE_RECEIVE_DATA:
> /* no need to read if no events */
> diff -Nrup ffmpeg-2.6.1--orig/ffserver_config.c
> ffmpeg-2.6.1/ffserver_config.c
> --- ffmpeg-2.6.1--orig/ffserver_config.c 2015-03-16
> 20:25:48.000000000 +0100
> +++ ffmpeg-2.6.1/ffserver_config.c 2015-04-05 02:33:53.000000000 +0200
> @@ -862,8 +862,10 @@ static int ffserver_parse_config_stream(
> } else {
> stream->stream_type = STREAM_TYPE_LIVE;
> /* JPEG cannot be used here, so use single frame MJPEG */
> - if (!strcmp(arg, "jpeg"))
> - strcpy(arg, "mjpeg");
> + if (!strcmp(arg, "jpeg")) {
> + strcpy(arg, "singlejpeg");
> + stream->single_frame=1;
> + }
> stream->fmt = ffserver_guess_format(arg, NULL, NULL);
> if (!stream->fmt)
> ERROR("Unknown Format: '%s'\n", arg);
> diff -Nrup ffmpeg-2.6.1--orig/ffserver_config.h
> ffmpeg-2.6.1/ffserver_config.h
> --- ffmpeg-2.6.1--orig/ffserver_config.h 2015-03-16
> 20:25:48.000000000 +0100
> +++ ffmpeg-2.6.1/ffserver_config.h 2015-04-05 02:33:53.000000000 +0200
> @@ -79,6 +79,7 @@ typedef struct FFServerStream {
> int multicast_port; /* first port used for multicast */
> int multicast_ttl;
> int loop; /* if true, send the stream in
> loops (only meaningful if file) */
> + char single_frame; /* only single frame */
>
> /* feed specific */
> int feed_opened; /* true if someone is writing to
> the feed */
> diff -Nrup ffmpeg-2.6.1--orig/libavformat/allformats.c
> ffmpeg-2.6.1/libavformat/allformats.c
> --- ffmpeg-2.6.1--orig/libavformat/allformats.c 2015-03-16
> 20:25:52.000000000 +0100
> +++ ffmpeg-2.6.1/libavformat/allformats.c 2015-04-05
> 02:33:53.000000000 +0200
> @@ -273,6 +273,7 @@ void av_register_all(void)
> REGISTER_MUXER (SEGMENT, stream_segment);
> REGISTER_DEMUXER (SHORTEN, shorten);
> REGISTER_DEMUXER (SIFF, siff);
> + REGISTER_MUXER (SINGLEJPEG, singlejpeg);
> REGISTER_DEMUXER (SLN, sln);
> REGISTER_DEMUXER (SMACKER, smacker);
> REGISTER_MUXDEMUX(SMJPEG, smjpeg);
> diff -Nrup ffmpeg-2.6.1--orig/libavformat/rawenc.c
> ffmpeg-2.6.1/libavformat/rawenc.c
> --- ffmpeg-2.6.1--orig/libavformat/rawenc.c 2015-03-16
> 20:25:54.000000000 +0100
> +++ ffmpeg-2.6.1/libavformat/rawenc.c 2015-04-05
> 02:33:53.000000000 +0200
> @@ -250,6 +250,17 @@ AVOutputFormat ff_mjpeg_muxer = {
> .write_packet = ff_raw_write_packet,
> .flags = AVFMT_NOTIMESTAMPS,
> };
> +
> +AVOutputFormat ff_singlejpeg_muxer = {
> + .name = "singlejpeg",
> + .long_name = NULL_IF_CONFIG_SMALL("JPEG single image"),
> + .mime_type = "image/jpeg",
> + .extensions = "jpg,jpeg",
this could break muxer detection
> + .audio_codec = AV_CODEC_ID_NONE,
> + .video_codec = AV_CODEC_ID_MJPEG,
> + .write_packet = ff_raw_write_packet,
> + .flags = AVFMT_NOTIMESTAMPS,
this is missing
.write_header = force_one_stream,
how does this code relate to libavformat/mpjpeg.c ?
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
No human being will ever know the Truth, for even if they happen to say it
by chance, they would not even known they had done so. -- Xenophanes
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