summaryrefslogtreecommitdiff
path: root/libavcodec/libopenh264enc.c
diff options
context:
space:
mode:
authorMartin Storsjö <martin@martin.st>2016-06-24 00:58:17 +0300
committerMartin Storsjö <martin@martin.st>2016-06-28 14:17:43 +0300
commit82b7525173f20702a8cbc26ebedbf4b69b8fecec (patch)
tree125eb3d187db9c5a9da834e7aa8ee1696461fb3b /libavcodec/libopenh264enc.c
parent785c25443b56adb6dbbb78d68cccbd9bd4a42e05 (diff)
downloadffmpeg-82b7525173f20702a8cbc26ebedbf4b69b8fecec.tar.gz
Add an OpenH264 decoder wrapper
While it is less featureful (and slower) than the built-in H264 decoder, one could potentially want to use it to take advantage of the cisco patent license offer. Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/libopenh264enc.c')
-rw-r--r--libavcodec/libopenh264enc.c48
1 files changed, 7 insertions, 41 deletions
diff --git a/libavcodec/libopenh264enc.c b/libavcodec/libopenh264enc.c
index 01cb6fb960..ab2adf010d 100644
--- a/libavcodec/libopenh264enc.c
+++ b/libavcodec/libopenh264enc.c
@@ -31,6 +31,7 @@
#include "avcodec.h"
#include "internal.h"
+#include "libopenh264.h"
typedef struct SVCContext {
const AVClass *av_class;
@@ -44,10 +45,6 @@ typedef struct SVCContext {
int cabac;
} SVCContext;
-#define OPENH264_VER_AT_LEAST(maj, min) \
- ((OPENH264_MAJOR > (maj)) || \
- (OPENH264_MAJOR == (maj) && OPENH264_MINOR >= (min)))
-
#define OFFSET(x) offsetof(SVCContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
@@ -68,31 +65,6 @@ static const AVClass class = {
"libopenh264enc", av_default_item_name, options, LIBAVUTIL_VERSION_INT
};
-// Convert libopenh264 log level to equivalent libav log level.
-static int libopenh264_to_libav_log_level(int libopenh264_log_level)
-{
- if (libopenh264_log_level >= WELS_LOG_DETAIL) return AV_LOG_TRACE;
- else if (libopenh264_log_level >= WELS_LOG_DEBUG) return AV_LOG_DEBUG;
- else if (libopenh264_log_level >= WELS_LOG_INFO) return AV_LOG_VERBOSE;
- else if (libopenh264_log_level >= WELS_LOG_WARNING) return AV_LOG_WARNING;
- else if (libopenh264_log_level >= WELS_LOG_ERROR) return AV_LOG_ERROR;
- else return AV_LOG_QUIET;
-}
-
-// This function will be provided to the libopenh264 library. The function will be called
-// when libopenh264 wants to log a message (error, warning, info, etc.). The signature for
-// this function (defined in .../codec/api/svc/codec_api.h) is:
-//
-// typedef void (*WelsTraceCallback) (void* ctx, int level, const char* string);
-
-static void libopenh264_trace_callback(void *ctx, int level, const char *msg)
-{
- // The message will be logged only if the requested EQUIVALENT libav log level is
- // less than or equal to the current libav log level.
- int equiv_libav_log_level = libopenh264_to_libav_log_level(level);
- av_log(ctx, equiv_libav_log_level, "%s\n", msg);
-}
-
static av_cold int svc_encode_close(AVCodecContext *avctx)
{
SVCContext *s = avctx->priv_data;
@@ -108,21 +80,15 @@ static av_cold int svc_encode_init(AVCodecContext *avctx)
{
SVCContext *s = avctx->priv_data;
SEncParamExt param = { 0 };
- int err = AVERROR_UNKNOWN;
+ int err;
int log_level;
WelsTraceCallback callback_function;
AVCPBProperties *props;
- // Mingw GCC < 4.7 on x86_32 uses an incorrect/buggy ABI for the WelsGetCodecVersion
- // function (for functions returning larger structs), thus skip the check in those
- // configurations.
-#if !defined(_WIN32) || !defined(__GNUC__) || !ARCH_X86_32 || AV_GCC_VERSION_AT_LEAST(4, 7)
- OpenH264Version libver = WelsGetCodecVersion();
- if (memcmp(&libver, &g_stCodecVersion, sizeof(libver))) {
- av_log(avctx, AV_LOG_ERROR, "Incorrect library version loaded\n");
- return AVERROR(EINVAL);
- }
-#endif
+ if ((err = ff_libopenh264_check_version(avctx)) < 0)
+ return err;
+ // Use a default error for multiple error paths below
+ err = AVERROR_UNKNOWN;
if (WelsCreateSVCEncoder(&s->encoder)) {
av_log(avctx, AV_LOG_ERROR, "Unable to create encoder\n");
@@ -134,7 +100,7 @@ static av_cold int svc_encode_init(AVCodecContext *avctx)
(*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_LEVEL, &log_level);
// Set the logging callback function to one that uses av_log() (see implementation above).
- callback_function = (WelsTraceCallback) libopenh264_trace_callback;
+ callback_function = (WelsTraceCallback) ff_libopenh264_trace_callback;
(*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_CALLBACK, (void *)&callback_function);
// Set the AVCodecContext as the libopenh264 callback context so that it can be passed to av_log().