]> git.sesse.net Git - nageru/blobdiff - httpd.cpp
Choose sample format on-the-fly instead of hard-coding it in defs.h.
[nageru] / httpd.cpp
index 6a92699936c45ef3a0c324064512af69abd2d2b8..f7ae6a0159cee6d72a79dfb467c57d826e729faa 100644 (file)
--- a/httpd.cpp
+++ b/httpd.cpp
@@ -19,6 +19,7 @@ extern "C" {
 #include "httpd.h"
 
 #include "defs.h"
+#include "flags.h"
 #include "timebase.h"
 
 struct MHD_Connection;
@@ -41,13 +42,15 @@ void HTTPD::start(int port)
                         MHD_OPTION_END);
 }
 
-void HTTPD::add_packet(const AVPacket &pkt, int64_t pts, int64_t dts)
+void HTTPD::add_packet(const AVPacket &pkt, int64_t pts, int64_t dts, PacketDestination destination)
 {
        unique_lock<mutex> lock(streams_mutex);
-       for (Stream *stream : streams) {
-               stream->add_packet(pkt, pts, dts);
+       if (destination != DESTINATION_FILE_ONLY) {
+               for (Stream *stream : streams) {
+                       stream->add_packet(pkt, pts, dts);
+               }
        }
-       if (file_mux) {
+       if (file_mux && destination != DESTINATION_HTTP_ONLY) {
                file_mux->add_packet(pkt, pts, dts);
        }
 }
@@ -67,7 +70,7 @@ void HTTPD::open_output_file(const string &filename)
                exit(1);
        }
 
-       file_mux.reset(new Mux(avctx, width, height));
+       file_mux.reset(new Mux(avctx, width, height, Mux::CODEC_H264, TIMEBASE));
 }
 
 void HTTPD::close_output_file()
@@ -89,9 +92,11 @@ int HTTPD::answer_to_connection(MHD_Connection *connection,
                                const char *version, const char *upload_data,
                                size_t *upload_data_size, void **con_cls)
 {
-       AVOutputFormat *oformat = av_guess_format(STREAM_MUX_NAME, nullptr, nullptr);
+       AVOutputFormat *oformat = av_guess_format(global_flags.stream_mux_name.c_str(), nullptr, nullptr);
        assert(oformat != nullptr);
-       HTTPD::Stream *stream = new HTTPD::Stream(oformat, width, height);
+
+       int time_base = global_flags.stream_coarse_timebase ? COARSE_TIMEBASE : TIMEBASE;
+       HTTPD::Stream *stream = new HTTPD::Stream(oformat, width, height, time_base);
        {
                unique_lock<mutex> lock(streams_mutex);
                streams.insert(stream);
@@ -135,21 +140,27 @@ void HTTPD::request_completed(struct MHD_Connection *connection, void **con_cls,
        }
 }
 
-HTTPD::Mux::Mux(AVFormatContext *avctx, int width, int height)
+HTTPD::Mux::Mux(AVFormatContext *avctx, int width, int height, Codec video_codec, int time_base)
        : avctx(avctx)
 {
-       AVCodec *codec_video = avcodec_find_encoder(AV_CODEC_ID_H264);
+       AVCodec *codec_video = avcodec_find_encoder((video_codec == CODEC_H264) ? AV_CODEC_ID_H264 : AV_CODEC_ID_RAWVIDEO);
        avstream_video = avformat_new_stream(avctx, codec_video);
        if (avstream_video == nullptr) {
                fprintf(stderr, "avformat_new_stream() failed\n");
                exit(1);
        }
-       avstream_video->time_base = AVRational{1, TIMEBASE};
+       avstream_video->time_base = AVRational{1, time_base};
        avstream_video->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-       avstream_video->codec->codec_id = AV_CODEC_ID_H264;
+       if (video_codec == CODEC_H264) {
+               avstream_video->codec->codec_id = AV_CODEC_ID_H264;
+       } else {
+               assert(video_codec == CODEC_NV12);
+               avstream_video->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
+               avstream_video->codec->codec_tag = avcodec_pix_fmt_to_codec_tag(AV_PIX_FMT_NV12);
+       }
        avstream_video->codec->width = width;
        avstream_video->codec->height = height;
-       avstream_video->codec->time_base = AVRational{1, TIMEBASE};
+       avstream_video->codec->time_base = AVRational{1, time_base};
        avstream_video->codec->ticks_per_frame = 1;  // or 2?
 
        // Colorspace details. Closely correspond to settings in EffectChain_finalize,
@@ -162,20 +173,29 @@ HTTPD::Mux::Mux(AVFormatContext *avctx, int width, int height)
        avstream_video->codec->color_range = AVCOL_RANGE_MPEG;  // Full vs. limited range (output_ycbcr_format.full_range).
        avstream_video->codec->chroma_sample_location = AVCHROMA_LOC_LEFT;  // Chroma sample location. See chroma_offset_0[] in Mixer::subsample_chroma().
        avstream_video->codec->field_order = AV_FIELD_PROGRESSIVE;
+       if (avctx->oformat->flags & AVFMT_GLOBALHEADER) {
+               avstream_video->codec->flags = AV_CODEC_FLAG_GLOBAL_HEADER;
+       }
 
-       AVCodec *codec_audio = avcodec_find_encoder(AUDIO_OUTPUT_CODEC);
+       AVCodec *codec_audio = avcodec_find_encoder_by_name(AUDIO_OUTPUT_CODEC_NAME);
+       if (codec_audio == nullptr) {
+               fprintf(stderr, "ERROR: Could not find codec '%s'\n", AUDIO_OUTPUT_CODEC_NAME);
+               exit(1);
+       }
        avstream_audio = avformat_new_stream(avctx, codec_audio);
        if (avstream_audio == nullptr) {
                fprintf(stderr, "avformat_new_stream() failed\n");
                exit(1);
        }
-       avstream_audio->time_base = AVRational{1, TIMEBASE};
+       avstream_audio->time_base = AVRational{1, time_base};
        avstream_audio->codec->bit_rate = AUDIO_OUTPUT_BIT_RATE;
        avstream_audio->codec->sample_rate = OUTPUT_FREQUENCY;
-       avstream_audio->codec->sample_fmt = AUDIO_OUTPUT_SAMPLE_FMT;
        avstream_audio->codec->channels = 2;
        avstream_audio->codec->channel_layout = AV_CH_LAYOUT_STEREO;
-       avstream_audio->codec->time_base = AVRational{1, TIMEBASE};
+       avstream_audio->codec->time_base = AVRational{1, time_base};
+       if (avctx->oformat->flags & AVFMT_GLOBALHEADER) {
+               avstream_audio->codec->flags = AV_CODEC_FLAG_GLOBAL_HEADER;
+       }
 
        AVDictionary *options = NULL;
        vector<pair<string, string>> opts = MUX_OPTS;
@@ -191,6 +211,8 @@ HTTPD::Mux::Mux(AVFormatContext *avctx, int width, int height)
 HTTPD::Mux::~Mux()
 {
        av_write_trailer(avctx);
+       av_free(avctx->pb->buffer);
+       av_free(avctx->pb);
        avformat_free_context(avctx);
 }
 
@@ -218,17 +240,27 @@ void HTTPD::Mux::add_packet(const AVPacket &pkt, int64_t pts, int64_t dts)
                fprintf(stderr, "av_interleaved_write_frame() failed\n");
                exit(1);
        }
+
+       av_packet_unref(&pkt_copy);
 }
 
-HTTPD::Stream::Stream(AVOutputFormat *oformat, int width, int height)
+HTTPD::Stream::Stream(AVOutputFormat *oformat, int width, int height, int time_base)
 {
        AVFormatContext *avctx = avformat_alloc_context();
        avctx->oformat = oformat;
        uint8_t *buf = (uint8_t *)av_malloc(MUX_BUFFER_SIZE);
        avctx->pb = avio_alloc_context(buf, MUX_BUFFER_SIZE, 1, this, nullptr, &HTTPD::Stream::write_packet_thunk, nullptr);
+
+       Mux::Codec video_codec;
+       if (global_flags.uncompressed_video_to_http) {
+               video_codec = Mux::CODEC_NV12;
+       } else {
+               video_codec = Mux::CODEC_H264;
+       }
+
        avctx->flags = AVFMT_FLAG_CUSTOM_IO;
 
-       mux.reset(new Mux(avctx, width, height));
+       mux.reset(new Mux(avctx, width, height, video_codec, time_base));
 }
 
 ssize_t HTTPD::Stream::reader_callback_thunk(void *cls, uint64_t pos, char *buf, size_t max)
@@ -250,6 +282,7 @@ ssize_t HTTPD::Stream::reader_callback(uint64_t pos, char *buf, size_t max)
                if (max >= len) {
                        // Consume the entire (rest of the) string.
                        memcpy(buf, s.data() + used_of_buffered_data, len);
+                       buf += len;
                        ret += len;
                        max -= len;
                        buffered_data.pop_front();
@@ -257,6 +290,7 @@ ssize_t HTTPD::Stream::reader_callback(uint64_t pos, char *buf, size_t max)
                } else {
                        // We don't need the entire string; just use the first part of it.
                        memcpy(buf, s.data() + used_of_buffered_data, max);
+                       buf += max;
                        used_of_buffered_data += max;
                        ret += max;
                        max = 0;