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Add option to select video codec

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Introduce the selection mechanism. Alternative codecs will be added in
further commits.

PR #3713 <https://github.com/Genymobile/scrcpy/pull/3713>
This commit is contained in:
Romain Vimont
2023-02-03 12:35:37 +01:00
parent f70f6cdd3e
commit 3e517cd40e
14 changed files with 179 additions and 18 deletions
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29
app/src/demuxer.c
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@@ -17,6 +17,25 @@
#define SC_PACKET_PTS_MASK (SC_PACKET_FLAG_KEY_FRAME - 1)
static enum AVCodecID
sc_demuxer_recv_codec_id(struct sc_demuxer *demuxer) {
uint8_t data[4];
ssize_t r = net_recv_all(demuxer->socket, data, 4);
if (r < 4) {
return false;
}
#define SC_CODEC_ID_H264 UINT32_C(0x68323634) // "h264" in ASCII
uint32_t codec_id = sc_read32be(data);
switch (codec_id) {
case SC_CODEC_ID_H264:
return AV_CODEC_ID_H264;
default:
LOGE("Unknown codec id 0x%08" PRIx32, codec_id);
return AV_CODEC_ID_NONE;
}
}
static bool
sc_demuxer_recv_packet(struct sc_demuxer *demuxer, AVPacket *packet) {
// The video stream contains raw packets, without time information. When we
@@ -171,7 +190,13 @@ static int
run_demuxer(void *data) {
struct sc_demuxer *demuxer = data;
const AVCodec *codec = avcodec_find_decoder(AV_CODEC_ID_H264);
enum AVCodecID codec_id = sc_demuxer_recv_codec_id(demuxer);
if (codec_id == AV_CODEC_ID_NONE) {
// Error already logged
goto end;
}
const AVCodec *codec = avcodec_find_decoder(codec_id);
if (!codec) {
LOGE("H.264 decoder not found");
goto end;
@@ -188,7 +213,7 @@ run_demuxer(void *data) {
goto finally_free_codec_ctx;
}
demuxer->parser = av_parser_init(AV_CODEC_ID_H264);
demuxer->parser = av_parser_init(codec_id);
if (!demuxer->parser) {
LOGE("Could not initialize parser");
goto finally_close_sinks;